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.

No machine can be made without holes. To connect the parts together, a variety of different sizes of screw holes, pin holes or rivet holes are required; In order to fix the transmission parts, various mounting holes are needed; The machine parts themselves also have many kinds of holes (such as oil holes, process holes, weight reduction holes, etc.). The operation of machining holes so that the holes meet the requirements is called hole machining.

The surface of the inner hole is one of the important surfaces of the mechanical parts. In mechanical parts, parts with holes generally account for 50% to 80% of the total number of parts. The types of holes are also diverse, there are cylindrical holes, conical holes, threaded holes and shaped holes. Common cylindrical holes are divided into general holes and deep holes, and deep holes are difficult to process.

1. First of all, the difference between U drill and ordinary drill is that U drill uses the peripheral blade and the center blade, at this Angle, the relationship between U drill and ordinary hard drill is actually similar to the relationship between the machine clamping turning tool and the welding turning tool, and the blade can be replaced directly after the tool is worn without regrinding. After all, the use of indexable blades still saves material than the whole hard drill, and the consistency of the blade makes it easier to control the size of the part.

2. The rigidity of U drill is better, you can use a high feed rate, and the processing diameter of U drill is much larger than that of ordinary drill, the maximum can reach D50~60mm, of course, U drill can not be too small due to the characteristics of the blade.

3.U drill encounter a variety of materials only need to replace the same type of different grades of blade, hard drill is not so convenient.

4. Compared with hard drilling, the precision of the hole drilled by U drilling is still higher, and the finish is better, especially when the cooling and lubrication are not smooth, it is more obvious, and U drilling can correct the position accuracy of the hole, and hard drilling can not be done, and U drilling can be used as a bore knife.

1. U drill can punch holes on surfaces with inclination angles less than 30~ without reducing cutting parameters.

2. After the cutting parameters of U drilling are reduced by 30%, intermittent cutting can be achieved, such as processing intersecting holes, intersecting holes, and phase perforation.

3. U drilling can realize the drilling of multi-step holes, and can boring, chamfer, eccentric drilling.

4. When drilling, the drilling chips are mostly short chips, and the internal cooling system can be used for safe chip removal, without cleaning the chips on the tool, which is conducive to the continuity of the processing of the product, shorten the processing time and improve efficiency.

5. Under the condition of standard length-diameter ratio, no chip removal is required when drilling with U drill.

6. U drill for indexable tool, blade wear without sharpening, more convenient replacement, and low cost.

7. The surface roughness value of the hole processed by U drilling is small, and the tolerance range is small, which can replace the work of some boring tools.

8. The use of U drilling does not need to pre-punch the center hole, and the blind hole bottom surface processed is relatively straight, eliminating the flat-bottom drill.

9. The use of U drilling technology can not only reduce drilling tools, and because U drilling is the head of the cemented carbide blade, its cutting life is more than ten times the ordinary drill, at the same time, there are four cutting edges on the blade, blade wear can be replaced at any time cutting, the new cutting saves a lot of grinding and replacing the tool time, can improve the average efficiency 6-7 times.

1. When using U drill, the rigidity of the machine tool and the neutrality of the tool and the workpiece are high, so U drill is suitable for use on high-power, high-rigidity and high-speed CNC machine tools.

2. When using U drilling, the center blade should be used with good toughness, and the peripheral blade should be used with relatively sharp blades.

3. When processing different materials, should choose different groove blade, under normal circumstances, small feed, small tolerance, U drilling length to diameter ratio, choose the groove blade with smaller cutting force, on the contrary, rough machining, large tolerance, U drilling length to diameter ratio is small, then choose the groove blade with larger cutting force.

4. When using U drilling, we must consider the power of the machine tool spindle, the stability of U drilling clamping, the pressure and flow of cutting fluid, and control the chip removal effect of U drilling, otherwise it will greatly affect the surface roughness and dimensional accuracy of the hole.

5. When installing the U drill, it is necessary to make the U drill center coincide with the center of the workpiece and be perpendicular to the surface of the workpiece.

6. When using U drilling, the appropriate cutting parameters should be selected according to different parts materials.

7. When drilling test cutting, be sure not to reduce the feed or speed at will because of caution and fear, so that the U drill blade is damaged or the U drill is damaged.

8. When using U-drill processing, when the blade is worn or damaged, it is necessary to carefully analyze the reasons and replace the blade with better toughness or more wear-resistant.

9. When using U drill to process step holes, it is necessary to start processing from large holes and then process small holes.

10. When drilling, pay attention to the cutting fluid to have enough pressure in order to flush out the chips.

11. The blade used on the center and edge of the U drill is different, must not be misused, otherwise it will damage the U drill rod.

12. When drilling with U-drill, workpiece rotation, tool rotation, and simultaneous rotation of the tool and workpiece can be used, but when the tool is moved in a linear feed mode, the most common method is to use the workpiece rotation mode.

13. The performance of the lathe should be considered when machining on the CNC car, and the cutting parameters should be adjusted appropriately, generally reducing the speed and low feed.

1. The blade is damaged too fast, easy to break, and the processing cost increases.

2. A harsh whistle is emitted during processing, and the cutting state is abnormal.

3. Machine jitter, affecting the machining accuracy of machine tools.

1. The installation of U drill should pay attention to the positive and negative directions, which blade is up, which blade is down, which is facing inside and which is facing outside.

2. The center height of U drilling must be corrected, according to its diameter size to require the control range, generally controlled within 0.1mm, the smaller the diameter of U drilling, the higher the center height requirements, the center height is not good U drilling two sides will wear, the aperture will be larger, the blade service life will be shortened, small U drilling is easy to break.

3. U drill has very high requirements for coolant, it must be ensured that the coolant is emitted from the center of U drill, the greater the pressure of the coolant, the better, the excess water outlet of the tower can be blocked up to ensure its pressure.

4, U drilling cutting parameters in strict accordance with the manufacturer's instructions, but also to consider different brands of blades, machine power, processing can refer to the load value of the machine tool size, make appropriate adjustments, generally using high speed, low feed.

5.U drill blade to check often, timely replacement, different blades can not be installed reverse.

6. According to the hardness of the workpiece and the length of the tool suspension to adjust the feed amount, the harder the workpiece, the larger the tool suspension, the smaller the cutting amount.

7. Do not use excessive wear of the blade, should be recorded in the production of blade wear and the relationship between the number of workpieces can be machined, timely replacement of new blades.

8. Use sufficient internal coolant with correct pressure. The main function of the coolant is chip removal and cooling.

9.U drill can not be used for processing softer materials, such as copper, soft aluminum, etc.

Honscn has more than ten years of cnc machining experience, specializing in cnc machining, hardware mechanical parts processing, automation equipment parts processing. Robot parts processing, UAV parts processing, bicycle parts processing, medical parts processing, etc. It is one of the high-quality suppliers of cnc machining. At present, the company has more than 50 sets of cnc machining centers, grinding machines, milling machines, high-quality high-precision testing equipment, to provide customers with precision and high-quality cnc spare parts processing services.