Shenzhen Honsc Precision is a professional manufacturer of screw, standoff,nut and others fasteners. We offer OEM and ODM service with any related products for customers. We have a professional team of product internal structure design and engineers, as well as a professional packaging team, our sales and documentation and logistics departments can finish the requirements of presentation of documents under various payment methods and different transportation modes.

• We will provide samples with regular colors, regular functions, no brand printing and PE bag packaging to confirm the styles and basic parameters for customers

• After receiving the regular samples, customers will arrange the size and magnetic test, After confirming that the size are approval, we will arrange second sampling when the customer needs us to improve the product function magnetic. The following are the details required by the customer and we provide redesign to meet requirment. 

Meantime, we will test it before shipping samples. And all tests are strictly carried out according to industry standards.

• After receiving T2 samples (designated special size and magnetic adjustment, etc.), customer arrange tests again. If confirmed the sample okay, the customer needs us to provide the certificates of this product conforming to EU standards, such as RoHS and MSDS before placing order. And the list of CE compliance statements as follows. All of our products are in accordance with all the European certification, such as CE, RoHS, REACH, etc., and all of them have prepared standard documents for customers checking.

• We start to prepare the order materials when customer confirm all the details such as color, size, function and other details of the final sample.

After the package such as qty, card, shipping mark etc. are provided by customer, we starts to arrange the master production. After all the goods finished, send picture to customer for approval. We promise the packaging is same as customer requested, master products are exactly the same as the final samples. The following photos of the master shipment, the passing rate of the third-party inspection of our company is 100%.

• After receiving shipment of whole order, customer put it on the market immediately and became the most popular product in the market quickly, no matter from the traditional market, the market of high-end professional fasteners or the online sales in Amazon. We always pay much attention to the quality of our products, which is recognized by customers and repurchased constantly.

In the field of machining industry, the precision size control of drawings plays a vital role, which directly affects the assembly performance and quality of mechanical equipment. The main factor affecting the size of precision machining is the error problem, because the error problem is affected by a variety of factors, in the machine precision machining will inevitably appear a variety of error problems, so only the use of various technical measures, the precision control in a scientific range. This requires technical personnel to strictly process according to the production drawings, and strictly require the machining process flow, so as to ensure the accuracy of the size of the precision machining production drawings to the greatest extent.

Today, with the rapid development of social economy and industrial reform, the role played by precision machining has become more and more important, and China's machining industry has also made great progress, not only the quality has been greatly improved, but also greatly expanded in the scale of production. With the development of the industrialization process, the precision of precision machining is also more and more attention, therefore, it is necessary to strengthen the control of precision in the process of machining (precision machining process, the control of precision must be attached great importance, and take reasonable technical measures to solve the problems.

In the field of mechanical processing in China, there is a clear definition of the accuracy of mechanical processing, which refers to the professional and technical personnel after the completion of the processing of mechanical parts, the use of instruments to detect the position of the parts, shape, size and related data, so as to determine the degree of compliance of the parts. Generally speaking, the main factor affecting the accuracy of machining is the various errors generated in machining, and the operators and technical units of technical processing must attach great importance to this problem. In machining, the control and grasp of precision are obviously related to the error problem of machining. Machining error is mainly reflected by the shape, size and position, it is through the use of mechanical size control to achieve the purpose of controlling the precision of machining, in ensuring the surface quality of machining, the machining size error control within a reasonable range. In the process of machining, due to the impact of the benchmark and the machining surface, it will cause the deviation of the position of the precision parts, so the verticality, position and parallelism of the precision machining must be strictly controlled.

In the process of precision machining, there are strict requirements for various production technologies and production processes, so as to reduce or even eliminate the purpose of machining technology errors. In machining, the error between the spindle rotation is an important factor affecting the accuracy. In the process of modern mechanical production and processing, the error caused by the spindle rotation problem is very obvious, which is more obvious in high-tech and high-precision products, which is also an important factor affecting the processing. For the resulting error, the error can be reduced by processing and transforming the machinery. In addition, bearings with higher precision can also be used, which can also significantly reduce the resulting error.

In addition to the error caused by the spindle rotation, the error caused by the problem of the fixture and the tool can not be ignored. Due to the requirements of production, machining manufacturers will renovate the size, type and model of fixtures and tools to a certain extent, which will have a greater impact on the accuracy of machining. In the actual processing process, the size of the fixture and the tool are fixed, which makes it impossible to adjust the size of the fixture and the tool in the process of production and processing. This will cause a certain error flow in the mechanical processing when the technical parameters and the working environment change.

In addition, due to the process of using and installing fixtures and tools, the position of fixtures and tools will be changed, resulting in errors. Of course, the cutting force will also have a certain impact on the machining, resulting in the generation of errors, and ultimately the accuracy of the machining. Due to the influence of the external environment and temperature, the machined parts can easily affect the cutting force. The greater accuracy error is caused by the local change of the process system and the overall deformation. In the process of mechanical production and processing, if the change of the direction of the tightening degree and the insufficient stiffness of the parts are affected, the deformation of the machined parts will be caused, and the machining will produce a lot of errors, which will affect the precision control of the machining.

In the process of mechanical production and processing, the problem of processing accuracy must be strictly controlled, and the accuracy problem must be comprehensively considered, so the processing accuracy of each part must be greatly improved, so as to improve the accuracy of the entire mechanical equipment. In the process of machining, the original error plays an important role in ensuring the quality of machining. For mechanical components, it is necessary to classify them according to the requirements of relevant regulations, according to the material, type, model, size and use, and then develop a certain accuracy range, and control the precision error of the machined parts within this range. For the technical staff, it is necessary to determine a reasonable range of the error generated in the machining, and make reasonable adjustments to the fixture and the tool, so as to control the error within this reasonable range, and ultimately reduce the error of the part to the greatest extent. Only by controlling the errors in machining, can the precision control of machining be achieved to the maximum extent, so as to achieve the purpose of improving the precision of machining.

Compensating error method

Error compensation method refers to the use of processing means to achieve error compensation after the machining of mechanical parts, so as to achieve the purpose of reducing the error in the processing of parts. Compensation error method is a very important technical measure to solve the stiffness problem of the process. The main principle is to compensate the original error by creating a new error, so as to improve the precision control level in precision machining. Error compensation method is an important means to reduce the machining error, which has been widely used in practice at home and abroad. In domestic regulations, the original error is generally represented by a negative number, and the compensation error is specified as a positive number, so that when the original error and the compensation error are closer to zero, the smaller the machining error.

Of course, the methods of reducing errors and improving precision control are not only these two, but also the transfer error method is a more commonly used method of reducing errors. Therefore, in the actual production process, it is necessary to choose a reasonable method to reduce the error according to different situations, so as to achieve the best precision control and promote the continuous and stable development of precision machining.

The materials are wrong, all in vain! In order to produce satisfactory products, the choice of materials is the most basic step and the most critical step. CNC machining can choose a lot of materials, including metal materials, non-metallic materials and composite materials.

Common metal materials include steel, aluminum alloy, copper alloy, stainless steel and so on. Non-metallic materials are engineering plastics, nylon, bakelite, epoxy resin and so on. Composite materials are fiber reinforced plastic, carbon fiber reinforced epoxy resin, glass fiber reinforced aluminum and so on.

Different materials have different physical and mechanical properties, and the correct selection of the right material is critical to the performance, accuracy and durability of the part. Starting from my own experience, this article will share with you how to choose low cost and suitable materials among many processing materials.

First, we need to determine the end use of the product and its parts. For example, medical equipment needs to be disinfected, lunch boxes need to be heated in the microwave oven, bearings, gears, etc., need to be used for load-bearing and multiple rotational friction.

After determining the use, starting from the actual application needs of the product, the use of the product is investigated, and its technical requirements and environmental requirements are analyzed, and these needs are transformed into the characteristics of the material. For example, parts of medical equipment may have to withstand the extreme heat of an autoclave; Bearings, gears and other materials have requirements for wear resistance, tensile strength and compressive strength. Mainly can be analyzed from the following points:

01 Environmental Requirements

Analyze the actual use scenario and environment of the product; For example: What is the long-term working temperature of the product, the highest/lowest working temperature, respectively, belonging to high temperature or low temperature? Are there UV protection requirements indoors or outdoors? Is it in a dry environment or a humid, corrosive environment? Etc.

02 Technical Requirements

According to the technical requirements of the product, the required capabilities are analyzed, which can cover a range of application-related factors. Such as: the product needs to have conductive, insulating or anti-static which of the capabilities? Is heat dissipation, thermal conductivity, or flame retardant required? Do you need exposure to chemical solvents? Etc.

03 Physical Performance requirements

Analyze the required physical properties of the part based on the intended use of the product and the environment in which it will be used. For parts subjected to high stress or wear, factors such as strength, toughness and wear resistance are critical; For parts exposed to high temperatures for a long time, good thermal stability is required.

04 Appearance and surface treatment requirements

The market acceptance of the product depends largely on the appearance, the color and transparency of different materials are different, the finish and the corresponding surface treatment are also different. Therefore, according to the aesthetic requirements of the product, the processing materials should be selected.

05 Processing performance considerations

The machining properties of the material will affect the manufacturing process and accuracy of the part. For example, although stainless steel is rust resistant and corrosion resistant, its hardness is high, and it is easy to wear the tool during processing, resulting in very high processing costs, and it is not a good material to process. The plastic hardness is low, but it is easy to soften and deform during the heating process, and the stability is poor, which needs to be selected according to actual needs.

Because the actual application requirements of the product are composed of a number of contents, there may be multiple materials that meet the application requirements of a product; Or the situation where the optimal selection of different application requirements corresponds to different materials; We may end up with several materials that meet our specific requirements. Therefore, once the desired material properties are clearly defined, the remaining selection step is to search for the material that best matches those properties.

The selection of candidate materials begins with a review of material properties data, of course, it is not possible to investigate thousands of applied materials, and there is no need to do so. We can start from the material category, and first decide whether we need metal materials, non-metallic materials or composite materials. Then the previous analysis results, corresponding to the material characteristics, narrow the selection of candidate materials. Finally, the material cost information is used to select the most suitable material for the product from a number of candidate materials.

At present, Honscn has selected and launched a number of materials suitable for processing, which have been a popular choice for our customers.

Metallic materials refer to materials with properties such as luster, ductility, easy conduction and heat transfer. Its performance is mainly divided into four aspects, namely: mechanical properties, chemical properties, physical properties, process properties. These properties determine the scope of application of the material and the rationality of the application, which is an important reference for us to choose metal materials.The following will introduce two types of metal materials, aluminum alloy and copper alloy, which have different mechanical properties and processing characteristics.

There are more than 1000 aluminum alloy grades registered in the world, each brand name and meaning are different, different grades of aluminum alloy in hardness, strength, processability, decoration, corrosion resistance, weldability and other mechanical properties and chemical properties there are obvious differences, each has its strengths and weaknesses.

hardness

Hardness refers to its ability to resist scratches or indentations. It has a direct relationship with the chemical composition of the alloy, and different states have different effects on the hardness of aluminum. The hardness directly affects the cutting speed and the type of tool material that can be used in CNC machining.

From the highest hardness that can be achieved, 7 series > 2 series > 6 series > 5 series > 3 series > 1 series.

intensity

Strength refers to its ability to resist deformation and fracture, commonly used indicators include yield strength, tensile strength and so on.

It is an important factor that must be considered in product design, especially when aluminum alloy components are used as structural parts, the appropriate alloy should be selected according to the pressure under.

There is a positive relationship between hardness and strength: the strength of pure aluminum is the lowest, and the strength of 2 series and 7 series heat-treated alloys is the highest.

density

Density refers to its mass per unit volume and is often used to calculate the weight of a material.

Density is an important factor for a variety of different applications. Depending on the application, the density of aluminum will have a significant impact on how it is used. For example, lightweight, high-strength aluminum is ideal for construction and industrial applications.

The density of aluminum is about 2700kg/m³, and the density value of different types of aluminum alloy does not change much.

Corrosion resistance

Corrosion resistance refers to its ability to resist corrosion when in contact with other substances. It includes chemical corrosion resistance, electrochemical corrosion resistance, stress corrosion resistance and other properties.

Corrosion resistance selection principle should be based on its use occasion, high-strength alloy used in a corrosive environment, must use a variety of anti-corrosion composite materials.

In general, the corrosion resistance of series 1 pure aluminum is the best, series 5 performs well, followed by series 3 and 6, and series 2 and 7 are poor.

processability

The machinability includes formability and machinability. Because formability is related to the state, after selecting the grade of aluminum alloy, it is also necessary to consider the strength range of each state, usually high strength materials are not easy to form.

If the aluminum is to be bent, drawn, deep drawing and other forming processes, the formability of the fully annealed material is the best, and on the contrary, the formability of the heat-treated material is the worst.

The machinability of aluminum alloy has a great relationship with the alloy composition, usually higher strength aluminum alloy machinability is better, on the contrary, low strength machinability is poor.

For molds, mechanical parts and other products that need to be cut, the machinability of aluminum alloy is an important consideration.

Welding and bending properties

Most aluminum alloys are welded without problems. In particular, some 5 series aluminum alloys are specially designed for welding considerations; Relatively speaking, some 2 series and 7 series aluminum alloys are more difficult to weld.

In addition, the 5 series aluminum alloy is also the most suitable for bending a class of aluminum alloy products.

Decorative property

When aluminum is applied to decoration or some specific occasions, its surface needs to be processed to obtain the corresponding color and surface organization. This situation requires us to focus on the decorative properties of materials.

Aluminum surface treatment options include anodizing and spraying. In general, materials with good corrosion resistance have excellent surface treatment properties.

Other characteristics

In addition to the above characteristics, there are electrical conductivity, wear resistance, heat resistance and other properties, we need to consider more in the selection of materials.

Orichalcum

Brass is an alloy of copper and zinc. Brass with different mechanical properties can be obtained by changing the content of zinc in brass. The higher the content of zinc in brass, the higher its strength and slightly lower plasticity.

The zinc content of the brass used in the industry does not exceed 45%, and the zinc content will be brittle and make the alloy performance worse. Adding 1% tin to brass can significantly improve the resistance of brass to seawater and Marine atmosphere corrosion, so it is called "navy brass".

Tin can improve the machinability of brass. Lead brass is commonly referred to as easy to cut national standard copper. The main purpose of adding lead is to improve the machinability and wear resistance, and lead has little effect on the strength of brass. Carving copper is also a kind of lead brass.

Most brasses have good color, processability, ductility, and are easy to electroplate or paint.

Red copper

Copper is pure copper, also known as red copper, has good electrical and thermal conductivity, excellent plasticity, easy hot pressing and cold pressure processing, can be made into plates, rods, tubes, wires, strips, foil and other copper.

A large number of products that require good electrical conductivity such as electrocorroded copper and conductive bars for the manufacture of EDM, magnetic instruments and instruments that must be resistant to magnetic interference, such as compass and aviation instruments.

No matter what kind of material, a single model basically can not meet all the performance requirements of a product at the same time, and it is not necessary. We should set the priority of various performance according to the performance requirements of the product, the use of the environment, the processing process and other factors, reasonable selection of materials, and reasonable control of costs under the premise of ensuring performance.

Starts with hardware, doesn't stop with hardware. Honscn is committed to providing fastener/CNC industry chain one-stop service.

With the advent of the Industry 4.0 era, CNC processing technology is also changing step by step, in addition to the pursuit of quality breakthroughs, many entrepreneurs are also pursuing automated production! Automation is a future trend in manufacturing. However, as we all know, the cost of manufacturing machine iteration is very expensive, under normal circumstances, the same series of machines do not appear the quality of the general process span will not be iterated machine. So we can avoid the heavy way to improve the production capacity and efficiency of CNC machine tools, and then take a look!

With the change of the development process environment, today's CNC machining machine tool technology has been constantly improving, today's we are already different from yesterday's we, the new era has put forward new challenges to us. What do we need to change to meet the challenge? What is needed is for us to continuously improve our perceptions, our capabilities, our methods and our actions.

The process of the internal structure of the product is closely related to the processing cost. The processing technology used by the product directly determines the production cost, and the processing efficiency and production capacity will also be affected by it.

From the perspective of product design, if the manufacturing threshold of processing technology can be fundamentally reduced, on this basis, certain processing costs can be reduced, and the processing CT time of CNC machine tools can be shortened, and the processing quality and processing quality can be improved. Efficiency can be improved. Can greatly improve the CNC machining capacity.

The life management control of the tool by the CNC system is to calculate the number of tool machining, or to determine the processing time. Therefore, when the tool life reaches the expected number of machining times or time of the system, the CNC automatically stops the action. It is assumed that when manual supervision is not in place, or when the tool is not able to stop changing in the expected situation, the CNC machining process will be affected. Therefore, tool life is a key factor affecting CNC production capacity.

Especially when the CNC machining process of a workpiece is too much, the processing amount is cumbersome, and the dimensional accuracy of the processing is relatively strict, the tools to be used will be more. At this time, the CNC tool library automatically changes the tool, and the knife action is more frequent, and the tool wear is larger, so that the manual tool change and machine adjustment are more frequent.

Therefore, tool wear is an important indicator that affects the normal production rhythm and capacity of CNC. Through technical measures to improve the process, improve the overall life of the tool, not only can save the cost of the tool, but more importantly, can reduce the stopping time of the CNC spindle, so as to improve the efficiency of CNC processing, improve the production quality and capacity.

In the process of confirming the product processing technology, it is necessary to fully consider all the functions of CNC CNC machine tools, to shorten the processing route, reduce the number of tool walking and tool changing times, so as to ensure that the processing capacity is improved.

By choosing a reasonable and appropriate cutting amount, give full play to the cutting performance of the tool, optimize the processing parameters of the CNC, ensure the high-speed machining of the spindle, reduce the CT time of parts processing, and ultimately improve the processing efficiency of the product and improve the production quality.

When writing CNC machining process, it is not only necessary to focus on the feasibility of processing, but also to consider whether the process of the processing process will have a negative effect on the processing efficiency. Effectively shorten the processing time of CNC CT and improve production capacity can be achieved by arranging a reasonable processing sequence and reducing the number of tool changes.

The development and strict implementation of production SOP is an indispensable part of CNC machining production process. Manual operation behavior should be reasonably standardized to reduce employees' negative emotions and unnecessary waste of time efficiency. Formulate incentive policies to improve the enthusiasm of technicians, so as to achieve the purpose of improving production capacity and product processing quality.

The inspection work needs to be comprehensive, such as the use of the cylinder, solenoid valve, motor and other electrical parts in the oil environment on the equipment and fixture condition, and the investigation of these parts before the operation can effectively avoid the situation that the production of CNC spindle is forced to stop, so as to improve the utilization rate of the spindle.

Machine iteration is expensive, but there are other methods we can use to do it at a very small cost in exchange for a high yield.

The high-quality management of CNC machining production should be put in the first place, and the above six points can effectively improve the production performance and capacity of the machine tool.

Modern CNC (computer numerical control) machines enable the manufacture of precision parts quickly and efficiently. CNC machines manufacture millions of parts around the world every day. All of these parts vary in size, material and purpose.

CNC machining is often used for metal parts and assemblies with complex designs and tight tolerances. Because of the precision and capability of CNC machining, it is one of the most demanding manufacturing methods.

These industries rely heavily on CNC machined parts: automotive, Aerospace & Defense, medical, construction equipment, Power & Energy, and industrial. In this article, we will share how each industry uses precision machined parts.

Automobile industry

The automotive and transportation industry is one of the largest users of CNC machined parts. Cars, trucks, vans and motorcycles all use precision metal parts. Vehicles require thousands of parts, which require high precision and durability.

CNC machining is ideal for many automotive parts because the parts need to be the same and made of hard metals such as steel and stainless steel. Many engine and transmission parts are CNC machined. Few manufacturing processes can match the precision and repeatability offered by CNC machining.

Electric vehicles play an important role in the development of CNC machining, as they require a large number of precision-machined parts.

Medical industry

Similar to the automotive industry, the medical industry requires parts with extremely tight tolerances. There is no room for error in the manufacture of life-saving equipment.

CNC machining provides the medical industry with precision parts, required materials, and fast manufacturing. CNC machines can use specific materials required by the medical industry, such as stainless steel, titanium and copper parts.

CNC machining is also an ideal choice to support crisis response. In early 2020, many CNC workshops shifted part of their work to manufacturing basic medical equipment such as parts for ventilators. CNC machines have a wide range of functions and can be easily programmed to make new parts.

Industrial equipment industry

CNC machines make parts for other manufacturing operations. The industrial sector includes packaging equipment, electronics and other general industrial equipment. Overall, the industry accounts for about 25% of CNC machined parts.

Industrial equipment often requires high-precision parts that can operate in high-stress environments. The consistency and custom machining capabilities offered by CNC machining are necessary for the industry.

Aerospace and defense industries

The aerospace industry is worth an estimated $300 billion and shows no signs of slowing down. We usually think of aerospace as = airplanes, but there are also thousands of satellites and rockets that require thousands of precision parts.

The aerospace and defense industry relies on CNC machining to manufacture complex precision parts that leave no margin for error. The tight tolerances, rapid prototyping and scalability of CNC machines are ideally suited to meet the needs of this industry.

Construction industry

The construction industry needs reliable, high-strength parts that can operate in harsh environments. CNC machine tools can process large and small metal parts needed for construction equipment.

CNC machining is the best manufacturing method for difficult metal alloys. High-strength steel alloys are commonly used to make parts for cranes, lifting equipment, bulldozers and other construction equipment. Gears, pump equipment, and high-strength fasteners are just a few examples of NC machined parts.

Energy industry

The gas, oil and energy industry is another huge market that relies on many #CNC machined components. Precision valves, bushings and sensor devices all require precision machined parts.

To keep vital energy infrastructure operating at peak efficiency, components need to fit perfectly together.

Parts used in harsh environments require high precision and high corrosion and heat resistance. Salt water and chemicals can destroy many metal parts, so the industry needs metals such as Hastelloy, which often require modern CNC machine tool cutting tools.

In general, CNC machining process plays an irreplaceable role in modern manufacturing industry, and its high precision, high efficiency and flexibility bring great development opportunities and competitive advantages to all walks of life. With the continuous progress of technology and the continuous expansion of applications, CNC machining technology will continue to play an important role in the future manufacturing industry, and make new contributions to the progress and development of human society.#Honscn #cnc