1.High-Precision Components: CNC machining offers the ability to create small, high-precision components integral to the functioning of 3C electronics, such as sensors, microcontrollers, and small mechanical parts.

2.Customized Modifications: For repair or modification purposes, CNC machining can produce replacement parts or customized modifications for older or discontinued electronic devices that might not have readily available parts.

3.Quality and Consistency: CNC machining ensures high-quality production and consistency in electronic components, meeting tight tolerances and specifications required by the 3C industry.

4..Mass Production: Once the design is finalized, CNC machining can be employed for mass production of custom components in the 3C electronics industry, ensuring each piece meets exact specifications.

Overall, CNC custom machining plays a pivotal role in the 3C electronics industry by enabling the creation of precise, customized, and high-quality components necessary for modern electronic devices. For custom CNC production services, please choose us and we will provide you with the best quality service and the most competitive price. Let us jointly promote the innovation and development of the 3C Electronics manufacturing industry!

With the arrival of the world's fourth industrial revolution, and the continuous development of science and technology and social production, mechanical manufacturing technology has undergone profound changes, the structure of mechanical products is more and more reasonable, and its performance, accuracy and efficiency are increasingly improved, so the production equipment of processing mechanical products has put forward high performance, high precision and high automation requirements. In order to solve the problem that ordinary machine tools can not be produced, to achieve single and small batch production, especially the automatic processing of some complex parts, CNC machining came into being.

Although, at present, China has become a processing country, precision parts processing plants all over the country. According to the data of the General Administration of Customs of China, in January and February 2023, the cumulative export volume of China's machine tools reached 2364123 units (2,364,100 units), from high-end CNC customized precision parts to ordinary standard products can achieve standardized mass production, the application of CNC technology can realize the automatic processing of parts and improve production efficiency. Especially in the automotive manufacturing, aerospace, electronic equipment manufacturing and other fields, the application of CNC technology has great potential. The application of CNC technology can realize the automatic processing of parts and improve production efficiency. Especially in the automotive manufacturing, electronic equipment manufacturing and other fields, the application of CNC technology has great potential.

CNC machining is widely used in the field of automotive parts, involving the engine, transmission, chassis, braking system, steering system and other aspects. However, no matter in any field of precision machining, achieving high precision and high speed is an important competitive means to obtain user orders.

The following are some specific applications of CNC machining in the field of automotive parts: 

Engine parts machining: CNC machining can be used to manufacture various parts of the engine such as cylinder block, crankshaft, connecting rod, valve seat, etc., which require high precision and high strength. 

1.Transmission parts processing: CNC machining can be used to manufacture various parts of the transmission system such as transmission gears, clutches, transmission shafts, etc., which require high precision and high strength. 

2.Brake parts processing: CNC machining can be used to manufacture various parts of the brake system such as brake discs, brake pads, brakes, etc., which require high precision and high quality.

3.Steering parts processing: CNC machining can be used to manufacture various parts of the steering system such as steering gear, steering rod, steering machine, etc., these parts need high precision and high strength.

With the continuous development of CNC machining technology and the expansion of application fields, whether it is automobile body design or automobile internal electronic parts processing, the application range of CNC custom machining technology in the field of automation will be more and more extensive. In the future, CNC machining technology will continue to play an important role in the automotive manufacturing field.

With the rapid development of science and technology, CNC machining technology is increasingly widely used in the medical industry. Its high precision, efficiency and compatibility provide a strong guarantee for the manufacture of medical devices and equipment.

According to statistics from international market research institutions, the global medical device market is increasing year by year and is expected to reach about 520 billion US dollars by 2025. In China, the scale of the medical device market is also continuing to expand, and is expected to reach 160 billion yuan by 2023. In this context, the application of CNC machining technology in the medical industry is particularly important.

CNC machining can process a wide range of materials, from metals and alloys to ceramics. Nevertheless, there are some requirements for medical equipment and devices. Depending on the specific use of the part or product, the material must be biocompatible or approved as medical grade.

It is understood that CNC machining technology can produce accurate, precise and complex surgical instruments, such as minimally invasive surgical instruments and endoscopes. These instruments need to have high accuracy and stability to ensure safety and effectiveness during the surgical procedure. According to relevant data, the global surgical device market is expected to reach about $5 billion by 2024.

In addition, the application of CNC machining in the manufacture of artificial joints, implants and orthopedic devices also provides patients with more treatment options. According to statistics, the global artificial joint market size is expected to reach about $12 billion by 2024. The advantages of CNC machining technology in the manufacturing of medical equipment components have also been fully utilized. The core components of high-end medical equipment, such as medical pumps, CT and MRI scanners, benefit from the high precision, high efficiency and reliability of CNC machining technology.

In terms of biocompatible materials, the compatibility of CNC processing technology and medical device manufacturing has also been widely recognized. According to statistics, the global market for biocompatible materials is expected to reach about $5.5 billion by 2024. 

It is worth mentioning that CNC machining technology also supports the manufacture of customized medical parts. This is of great significance for the treatment of rare diseases and rehabilitation of special patients. According to statistics, the global market for customized medical parts is expected to reach about $4.5 billion by 2024.

In summary, the application of CNC machining technology in the medical industry provides a strong guarantee for the improvement of the performance of medical devices and equipment. In the current era of rapid development of science and technology, we have reason to believe that CNC machining technology will play a greater role in the medical industry to help the prosperous development of China's medical cause. With the continuous expansion of the medical device market, the application prospect of CNC machining technology in the medical industry will be broader.

In the field of machining, after CNC machining process methods and division of processes, the main content of the process route is to rationally arrange these processing methods and processing sequence. In general, CNC machining of mechanical parts includes cutting, heat treatment and auxiliary processes such as surface treatment, cleaning and inspection. The sequence of these processes directly affects the quality, production efficiency and cost of the parts. Therefore, when designing CNC machining routes, the order of cutting, heat treatment and auxiliary processes should be reasonably arranged, and the connection problem between them should be solved.

In addition to the basic steps mentioned above, factors such as material selection, fixture design and equipment selection need to be considered when developing a CNC machining route. Material selection is directly related to the final performance of parts, different materials have different requirements for cutting parameters; The fixture design will affect the stability and accuracy of the parts in the process of processing; Equipment selection needs to determine the type of machine tool suitable for its production needs according to the characteristics of the product.

1, the processing method of precision machinery parts should be determined according to the characteristics of the surface. On the basis of familiar with the characteristics of various processing methods, mastering the processing economy and surface roughness, the method that can ensure the processing quality, production efficiency and economy is selected.

2, select the appropriate drawing positioning reference, according to the principle of crude and fine reference selection to reasonably determine the positioning reference of each process.

3, When developing the machining process route of the parts, it is necessary to divide the rough, semi-fine and finishing stages of the parts on the basis of the analysis of the parts, and determine the degree of concentration and dispersion of the process, and reasonably arrange the processing sequence of the surfaces. For complex parts, several schemes can be considered first, and the most reasonable processing scheme can be selected after comparison and analysis.

4, determine the processing allowance and process size and tolerance of each process.

5, select machine tools and workers, clips, quantities, cutting tools. The selection of mechanical equipment should not only ensure the quality of processing, but also be economical and reasonable. Under the conditions of mass production, general machine tools and special jigs should generally be used.

6, Determine the technical requirements and inspection methods of each major process.Determining the cutting amount and time quota of each process is usually decided by the operator for a single small batch production plant. It is generally not specified in the machining process card. However, in the medium batch and mass production plants, in order to ensure the rationality of production and the balance of rhythm, it is required that the cutting amount must be specified, and must not be changed at will.

First rough and then fine

The processing accuracy is gradually improved according to the order of rough turning - semi-fine turning - fine turning. The rough lathe can remove most of the machining allowance of the workpiece surface in a short time, thereby increasing the metal removal rate and meeting the requirement of the uniformity of the allowance. If the residual amount left after the rough turning does not meet the finishing requirements, it is necessary to arrange a semi-finishing car for finishing. The fine car needs to ensure that the outline of the part is cut according to the drawing size to ensure the processing accuracy.

Approach first and then far

Under normal circumstances, the parts close to the tool should be processed first, and then the parts far away from the tool to the tool should be processed to shorten the moving distance of the tool and reduce the empty travel time. In the process of turning, it is beneficial to maintain the stiffness of the blank or semi-finished product and improve its cutting conditions.

The principle of internal and external intersection

For parts that have both an inner surface (inner cavity) and an outer surface to be processed, when arranging the processing sequence, the inner and outer surfaces should be roughed first, and then the inner and outer surfaces should be finished. Must not be part of the surface of the part (outer surface or inner surface) after processing, then processing other surfaces (inner surface or outer surface).

Base first principle

Priority should be given to the surface used as the finishing reference. This is because the more accurate the surface of the positioning reference, the smaller the clamping error. For example, when machining shaft parts, the center hole is usually machined first, and then the outer surface and end face are machined with the center hole as the precision basis.

The principle of the first and the second

The main working surface and assembly base surface of the parts should be processed first, so as to find out the modern defects on the main surface in the blank early. The secondary surface can be interspersed, placed on the main machined surface to a certain extent, before the final finishing.

The principle of the face before the hole

The plane outline size of the box and bracket parts is large, and the plane is generally processed first, and then the hole and other sizes are processed. This arrangement of processing sequence, on the one hand with the processed plane positioning, stable and reliable; On the other hand, it is easy to process the hole on the machined plane, and can improve the processing accuracy of the hole, especially when drilling, the axis of the hole is not easy to deviate.

When developing the machining process of parts, it is necessary to select the appropriate processing method, machine tool equipment, clamp measuring tools, blank and technical requirements for workers according to the production type of parts.

Now many industries of precision parts will use CNC machining production, but after CNC machining is completed, many products surface is still relatively rough, this time you need to carry out secondary surface finishing treatment.

First of all, surface treatment is not suitable for all CNC processing products, some products can be directly used after processing, and some need to be hand-polished, electroplating, oxidation, radium carving, screen printing, powder spraying and other special processes. Here are some things you should know about surface treatment.

1, improve product accuracy; After the product processing is completed, some products have a rough surface and leave a large residual stress, which will reduce the accuracy of the product and affect the precision of the match between the parts. In this case, the product surface treatment is required.

2, provide product wear resistance; If the parts usually use scenarios are interacting with other parts, long-term use will increase part wear, which also requires processing of the product surface to extend the service life of the parts.

3, improve the corrosion resistance of the product; Parts used for a long time in highly corrosive places require special surface treatment, requiring polishing and spraying of anti-corrosion materials. Improve corrosion resistance and service life of the product.

The above three points are the prerequisites for surface processing after CNC precision parts processing, and several surface treatment methods will be introduced below.

01. What is electroplating?

Electroplating refers to the surface engineering technology of obtaining a solid metal film on the surface of the substrate by electrolysis in a salt solution containing the metallized group, with the metallized group as the cathode and the metallized group or other inert conductor as the anode under the action of direct current.

02. Why electroplate?

The purpose of electroplating is to improve the appearance of the material, while giving the surface of the material a variety of physical and chemical properties, such as corrosion resistance, decorative, wear resistance, brazing and electrical, magnetic, optical properties.

03. What are the types and applications of electroplating?

1, galvanized

The galvanized layer is of high purity and is an anodic coating. The zinc layer plays a mechanical and electrochemical protective role on the steel matrix.

Therefore, galvanized layer is widely used in machinery, hardware, electronics, instruments, light industry and other aspects, is one of the most widely used plating species.

2. Copper plating

The copper coating is a cathode polar coating, which can only play a mechanical protection role on the base metal. The copper plating layer is usually not used as a protective decorative coating alone, but as the bottom or middle layer of the coating to improve the adhesion between the surface coating and the base metal.

In the field of electronics, such as through hole copper plating on printed circuit boards, as well as hardware technology, crafts, furniture decoration and other fields.

3. Nickel plating

Nickel plating layer is a negative polarity protective layer, which only has a mechanical protection effect on the base metal. In addition to the direct use of some medical devices and battery shells, the nickel-plated layer is often used as the bottom or middle interval layer, which is widely used in daily hardware, light industry, home appliances, machinery and other industries.

4. Chrome plating

The chromium-plated layer is a negative polarity coating, which only plays a mechanical protection role. Decorative chrome plating, the bottom layer is generally polished or electrodeposited bright coating.

Widely used in instruments, meters, daily hardware, household appliances, aircraft, automobiles, motorcycles, bicycles and other exposed parts. Functional chrome plating includes hard chrome plating, porous chrome, black chrome, opal chrome and so on.

Hard chrome layer is mainly used for various measuring calipers, gauges, cutting tools and various types of shaft, loose hole chrome layer is mainly used for cylinder cavity piston failure; The black chrome layer is used for parts that need a dull surface and wear resistance, such as aviation instruments, optical instruments, photographic equipment, etc. Opalescent chromium is mainly used in various measuring tools.

5. Tin plating

Compared to the steel substrate, tin is a negative polar coating, while compared to the copper substrate, it is an anode coating. The tinning layer is mainly used as the protective layer of thin plate in the can industry, and most of the malleable iron skin is made of iron plate tinning. Another major use of tin coatings is in the electronics and power industries.

6, alloy plating

In a solution, two or more metal ions are co-precipitated on the cathode to form a uniform fine coating process called alloy plating.

Alloy electroplating is superior to single metal electroplating in crystal density, porosity, color, hardness, corrosion resistance, wear resistance, magnetic conductivity, wear resistance and high temperature resistance.

There are more than 240 kinds of electroplating alloys, but less than 40 kinds are actually used in production. It is generally divided into three categories: protective alloy coating, decorative alloy coating and functional alloy coating.

Widely used in aviation, aerospace, navigation, automobile, mining, military, instruments, meters, visual hardware, tableware, Musical Instruments and other industries.

In addition to the above, there are other chemical plating, composite plating, non-metal plating, gold plating, silver plating and so on.

The surface of the items processed by CNC machining or 3D printing is sometimes rough, and the surface requirements of the products are high, so they need to be polished.

Polishing refers to the use of mechanical, chemical or electrochemical action to reduce the surface roughness of the workpiece in order to obtain a bright, flat surface processing method.

Polishing can not improve the dimensional accuracy or geometric accuracy of the workpiece, but for the purpose of obtaining a smooth surface or mirror gloss, and sometimes to eliminate gloss (extinction).

Several common polishing methods are described below:

01. Mechanical polishing

Mechanical polishing is by cutting, plastic deformation of the surface of the material to remove the polished convex and smooth surface polishing method, the general use of whetstone strip, wool wheel, sandpaper, etc., mainly manual operation, surface quality requirements can be used to super-fine polishing method.

Super finishing polishing is the use of special grinding tools, in the polishing liquid containing abrasive, tightly pressed on the workpiece to be machined surface, for high-speed rotation. This method is often used in optical lens molds.

02. Chemical polishing

Chemical polishing is to dissolve the microscopic protruding part of the surface of the material in the chemical medium preferentially than the concave part, so as to obtain a smooth surface.

The main advantage of this method is that it does not require complex equipment, can polish the workpiece with complex shape, and can polish many workpieces at the same time, with high efficiency.

The core problem of chemical polishing is the preparation of polishing liquid.

03. Electrolytic polishing

The basic principle of electrolytic polishing is the same as that of chemical polishing, that is, the surface is smooth by selectively dissolving small protruding parts on the surface of the material.

Compared with chemical polishing, the effect of cathode reaction can be eliminated and the effect is better.

04. Ultrasonic polishing

The workpiece is put into the abrasive suspension and placed together in the ultrasonic field, and the abrasive is ground and polished on the workpiece surface by relying on the oscillation of the ultrasonic wave.

Ultrasonic processing macroscopic force is small, will not cause workpiece deformation, but tooling production and installation is more difficult.

05. Fluid polishing

Fluid polishing relies on high-speed flowing liquid and the abrasive particles it carries to wash the surface of the workpiece to achieve the purpose of polishing.

Common methods are: abrasive jet processing, liquid jet processing, hydrodynamic grinding and so on. Hydrodynamic grinding is driven by hydraulic pressure to make the liquid medium carrying abrasive particles flow through the surface of the workpiece at high speed.

The medium is mainly made of special compounds with good flow under low pressure and mixed with abrasives, which can be silicon carbide powder.

06. Magnetic grinding polishing

Magnetic grinding and polishing is the use of magnetic abrasive under the action of magnetic field to form an abrasive brush, grinding the workpiece.

This method has the advantages of high processing efficiency, good quality, easy control of processing conditions and good working conditions.

The above are 6 common polishing processe.

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