Shenzhen Honscn is a professional manufacturer of CNC Machine Parts, Auto Lathe Machine Parts, and Screw Fasteners. We offer OEM and ODM service with any related products for customers. We have a professional team of product design and engineers, as well as a professional QC 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 can make offcial drawings based on customer request, or customer will provide their drawings for us to quote price and make samples for approval. 

• After receiving the samples, customers will do a test for the material, size and tolerance. If customer need to change the size or material, we can arrange second samples for approval. Until customer approved the samples, then we will confirm large order. 

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

• If confirmed the sample okay, the customer needs us to provide the Mill Test Crtificate of this product conforming to EU standards, such as CE, RoHS, REACH before placing order. 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 material, size, tolerance, surface finish and other details of the final sample.

After the package such as qty, label, shipping mark etc. are provided by customer, we starts to arrange the mass production. After all the goods finished, send pictures to customer for approval. We promise the packag is same as customer requested, mass products are exactly the same as the final samples. The following photos of the 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.

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.

"CNC machining often has many advantages. From the perspective of automotive, aerospace and consumer applications, it is widely used in the manufacturing of components in these fields. And, in a way, it has similar properties to metal."

Polyformaldehyde, or POM, is a fascinating plastic resin that is widely used in various industrial fields. The aerospace, automotive and electronics industries are important consumers of this polymer. The processing of polyformaldehyde, especially when used in the manufacturing field, can achieve fast and efficient processing. In addition, it benefits users due to its high mechanical strength, stiffness, machinability and variety of grade choices.

This article contains the following key details of POM CNC machining, as well as its basic characteristics in terms of functions, applications, advantages, etc. Let's get started.

POM, a homopolymer, is also known as Delrin. It is widely adopted as an engineering grade thermoplastic for manufacturing prototypes for industrial use. It usually comes in two forms: copolymers or homopolymers. From complex prototypes to flexible machine parts, it brings economic benefits to manufacturing.

Product designers can benefit from its structural integrity, color diversity and stiffness characteristics. In addition, its reliability and resilience in wet environments make it suitable for Marine, medical and aerospace applications. POM, usually has some other name, such as; Acetal (acetal), polyacetal (polyacetal), polyformaldehyde, etc.

POM formaldehyde or polyacetal has significant advantages when used in machining. Benefit from leading technologies such as precision machining POM or CNC machining; For example; Milling, drilling, punching and punching. In addition, its versatility in various grades is very beneficial for machining experts. Delrin is also compatible with advanced cutting technologies; Examples include laser cutting and extrusion processes.

Some of the main features of CNC machining include:

1. It is lightweight, wear-resistant and has low friction properties.

2. POM's low friction capability means it can be used in high-precision rotating parts, such as automotive bushings, bearings and gears.

3. POM is similar to acrylic because of its inherent optical transparency and crystallinity.

4. Delrin comes in a variety of textures, colors and grades.

5. POM CNC machining is essential for high volume production and runs efficiently.

6. It has a lower heat absorption rate compared to other grade polymers such as nylon and polyethylene.

7. Evolved into CNC POM prototyping, CNC machining plays a key role in prototyping.

8. Delrine or POM is also known as metallic plastic or super steel because of its high rigidity and strength.

9. POM can be efficiently milling, drilling, grooving and cutting with CNC machining.

10. Manufacturers can use it for a variety of applications such as aerospace, automotive and consumer goods.

11. Design engineers can benefit from its dimensional stability and achieve tighter tolerances of ±0.0005 inches.

12. Rapid prototyping with CNC machining is feasible.

13. CNC lathes are also available for POM machining.

14. It describes low-cost solutions and offers economic benefits when produced in large volumes.

15. POM is a common technique; For example; CNC machining, injection molding, and 3D printing.

16. Prototypes and complex geometric shapes are easier to manufacture with POM CNC machining.

POM numerical control machining method

 

Plastic CNC machining can be deployed through various technologies; For example; CNC milling, CNC drilling, lathes, grinding, blanking and punching. Its ease of processing greatly affects its use in these processes. In addition, it has also received a lot of attention for its high elongation. Now, let's discuss the method to get the best results POM CNC machining.

The process begins with computer-aided design and programming to improve accuracy, quality, and optimization levels. After the virtual configuration, the instructions are forwarded to the CNC machine in the following form: G code for further processing prospects.

A cutting operation is then performed on the workpiece material (POM) to obtain the optimal dimensions and dimensions. It is recommended to use coolant when machining Delrin at high speed to prevent ineffective processing operations such as chip buildup or overheating.

The following are some of the techniques commonly used to process strong polyformaldehyde or POM.

1.POM CNC milling

CNC milling is often used to machine POM parts. Tools with sharp edges help to get the best Angle, as well as surface finish. Therefore, it is reasonable to use a single slot milling cutter to process Delrin. These cutters prevent chip buildup during machining operations.

2.POM CNC drilling

Standard twist and center drills are best suited for processing polyformaldehyde resins. These materials have strong, sharpened edges that ultimately allow for smooth milling operations on Delrin. The optimal cutting speed of the drilled POM must be approximately 1500rpm and the lip torsion Angle 118°.

3.POM CNC turning

POM CNC turning operation is similar to brass turning operation. The best results can be achieved by maintaining high speed turning at the same rate as the medium feed rate. In order to prevent interference and excessive chip accumulation problems, a chip-breaker must be used for precision turning operations.

4. Blanking and punching

Blanking and stamping, both methods are preferred for small and medium-sized complex parts. During operation, cracks in the sheet can lead to major problems of improper processing. To eliminate this problem, it is best to preheat the Delrin plate and use a manual or high punch.

Highlights: "During POM CNC machining, it is important to keep the POM tight or hold the POM and use a hard steel or carbide tool.

The two most common acetal grades are very useful for CNC machining; Polyformaldehyde resin 150, polyformaldehyde resin; 100 (AF). Let's evaluate their compatibility;

1. Delrin 150

Derlin 150 belongs to the acetal homopolymer family. It has high mechanical strength, stiffness and wear resistance. Thanks to these unique features, it is ideal for CNC machining of gears, bushings, gaskets and automotive interior and exterior finishes. In addition, its stability under high temperature conditions makes it ideal for irrigation and conveyor parts.

2. Delrin 100(A)

Delrin 100 A is integrated with polytetrafluoroethylene (PTFE) for enhanced mechanical stability and viscosity. It is widely used in gear systems or components that require low friction characteristics. In addition, it has strong moisture and chemical resistance. In addition, it eliminates the self-lubricating (oil or grease) characteristic, making it different from other Delrin grades.

The desired surface finish plays a key role in the machining process. When it comes to surface treatment, two options are usually employed: machining and sandblasting. Here is a brief introduction to these;

After processing

CNC machining often leaves a bumpy surface or texture on the surface of the acetal part. When rough or textured parts are needed to improve the frictional properties of the parts, the surface treatment is preferred. The typical roughness range that can be achieved by machining is about 32 to 250 microinches (0.8 to 6.3 microns).

Pearl burst

In most cases, machining tools leave marks on acetal parts. Sandblasting is often used to prevent tool marks and enhance the visual effect of Delrin machined parts. It works by releasing glass beads or fine particles onto the surface of machined parts under high pressure. In addition, it improves durability and provides a valuable, smooth, matte, aesthetically pleasing and satin-polished appearance to polyformaldehyde resin machine parts.

There are other techniques; For example; Anodizing, polishing, painting and stamping. However, most design engineers prefer the above two options due to economic feasibility.

However, there are huge benefits to using Delrin for CNC machining. Besides, it also has some disadvantages. Here are Delrin's limitations;

Adhesion: Although acetal has excellent chemical resistance, it often presents challenges in bonding with strong adhesives. To overcome this problem, designers may need to employ post-treated surface options for best results.

Thermal sensitivity: Thermal sensitivity is a noteworthy issue for design manufacturers. The ability of acetone alcohols to withstand high temperature conditions is very significant. However, it is well suited for applications where mechanical stability is critical. But in some cases, when it is exposed to high temperature conditions, there will be deformation or distortion problems. Compared with nylon, nylon shows higher strength and structural strength even in harsh environments.

High flammability: The processing of polyformaldehyde resin faces the challenge of flammability. It is sensitive to temperatures above 121 degrees Celsius. It is recommended to always use a coolant, such as air coolant, to maintain the temperature during the processing operation. In order to overcome or control flammability problems, it is also necessary to use A Class A fire extinguisher when processing POM.

From automotive interiors to aerospace components, Drin is used in a wide range of applications. Let's take a look at some of its key applications in manufacturing;

Medical industry

POM is an important material for medical components or equipment. As an engineered thermoplastic, it meets the strict quality standards of the FDA or ISO. Its applications range from enclosures and housings to complex functional components; For example; Disposable syringes, surgical tools, valves, inhalers, prosthetics and medical implants.

Automobile industry

Derlin supplies a wide range of automotive components to the automotive industry. Its high mechanical strength, low friction, and wear resistance allow engineers to use it to make important car, motorcycle, and electric vehicle parts. Some common examples include: articulated housings, locking systems, and fuel transmitter units.

Consumer appliances

When it comes to convenient applications, polyformaldehyde processing describes several significant benefits. Manufacturing experts use it to make zippers, cooking utensils, washing machines and clips.

Industrial machinery parts

Derlin's great strength enables it to be used in industrial parts manufacturing. Its ability to withstand wear and low friction characteristics makes it ideal for components such as springs, fan wheels, gears, housings, scrapers and rollers.

As an industry pioneer, Honscn is always at the forefront of market developments. We know that in the fierce market competition, only by constantly honing ourselves can we create indestructible competitiveness. Therefore, we adhere to technological innovation and integrate scientific management into every production link to ensure that every step is accurate. We not only focus on the pulse of the domestic market, but also in line with international standards, with a global perspective to examine the industry trend, grasp the pulse of The Times. With an open mind, embrace the world, with excellent quality, win the future!

Please feel free to contact us to discuss your project needs!

Strategic Plan You should consider whether or not you are looking for a long term relationship. You need to locate a good cultural and strategic fit. Do your due diligence and take your time in uncovering a manufacturers professional reputation in that industry. During your research, don't just look at the positive reviews to determine how good they are, look for the red flags and see how bad things can get.

The Process Type Different manufacturers use different manufacturing processes that include extrusion, co-extrusion, tri-extrusion as well as crosshead extrusion coatings.

The Plastic Materials The plastic extrusion materials are used in different applications and each of them has their unique properties. One of the most important aspects of hiring a manufacturer is considering the extrusion materials they use for the custom parts. You have to be sure that the parts will be manufactured successfully and will perform as properly as is expected. In case you are not sure about the kind of plastic extrusion materials that would be best for your parts, an engineer can assist you in that area. There are also numerous grade types for the extrudable materials so you should choose a company that can produce the grade you need.

Capabilities If you have a significant production volume requirement, it is essential to know the production capabilities of the manufacturer. The manufacturer should also be able to provide you with extensive capabilities in terms of the design, tooling and fabrication. With these plastic extrusion capabilities, a manufacturer is able to produce high quality custom parts that meet the requirements of their customers. The finishes should be considered as well as they could be matt, glossy or textured. That means your custom plastic parts manufacturer should know about the latest finishes in the market.

Tooling Custom plastic extrusion needs tooling, which is a lot cheaper compared to injection molding. A quality extrusion manufactures ought to offer you state of the art tooling capabilities. They should have an experienced team that designs, engineers and tests all tooling. This will improve productivity, efficiency, safety and reduce costs.

Customer Service When working with any manufacturer, the process will become easier if they have working customer services that communicate effectively. A great manufacturing company is determined by the quality of customer services they offer. If for instance you have any last minute requests or want to change your order, you need to know that someone will be there to attend to you and support you. This will be more important if you are looking for a long term relationship. For it to be successful custom plastic parts manufacturer there needs to be helpful and pleasant customer service.

Conclusion You must consider these things when you are looking for the right manufacturer. As long as you evaluate their previous work and ensure they can provide you with all your requirements at a reasonable price, you will find a good company to work with.