Built on a reputation of excellence, cnc precision machined parts from Honscn Co.,Ltd remains popular due to its quality, durability, and reliability. A large amount of time and effort are taken for its R&D. And the quality controls are implemented at every level of the entire supply chain to ensure top quality of this product.
All HONSCN products are highly praised by customers. Thanks to the efforts of our industrious staff and large investment into the state-of-the-art technology, the products stand out in the market. Many customers ask for samples to get to know more details about them, and even more of them are attracted to our company to try these products. Our products bring bigger orders and better sales for us, which also prove that a product that is exquisitely made by professional staff is a profit maker.
Companies all over the world are trying continuously to enhance their service level, and we are no exception. We have several teams of senior engineers and technicians who can help provide technical support and address the issues, including maintenance, precautions, and other after-sales services. Through Honscn, on-time cargo delivery is guaranteed. Because we have cooperated with the leading freight forwarding agents for decades, and they can guarantee the safety and integrity of the cargo.
CNC (Computer Numerical Control) custom machining services play a crucial role in the 3C (Computers, Communications, and Consumer Electronics) industry.
CNC (Computer Numerical Control) custom machining services
3C Industry
Here are some specific applications of CNC custom machining in 3C electronics:
1. Prototyping and Product Development: CNC machining is extensively used in the prototyping phase of 3C electronics. It allows for the creation of precise and custom components, facilitating rapid prototyping and iterative design improvements before mass production.
2. Customized Casings and Enclosures: CNC machining enables the production of intricate and precisely designed casings, housings, and enclosures for electronic devices. These casings can be tailor-made to fit specific components, ensuring optimal functionality and aesthetics.
3. Printed Circuit Boards (PCBs): CNC machining is used for creating PCBs with high precision. CNC milling and drilling machines can fabricate complex PCB designs, ensuring accurate placement of holes, traces, and components.
4. Heat Sinks and Cooling Systems: In electronic devices, managing heat is crucial for optimal performance and longevity. CNC machining helps create intricate heat sinks and cooling systems with specialized designs to dissipate heat effectively.
5. Connectors and Adapters: Custom CNC machining produces connectors, adapters, and specialized components that facilitate connectivity within electronic devices. These components can be tailored to meet specific device requirements.
6. Button and Control Interfaces: CNC machining enables the creation of precise and customized buttons, knobs, and control interfaces for electronic devices. This ensures ergonomic design and functionality.
Project introduction
Customer products
This product is a mechanical part, and the processing structure is complex, so the size and relative position requirements are high. Therefore, the accessory needs to scan the data of the first industrial part in 3D, detect the quality error between the data and the design document, and analyze the mapping cost of mechanical parts to ensure the smooth progress of production.
Customer difficulties
After the customer's castings are processed, how to detect them has become a difficult problem. The customer has no way to detect the complex structure, many internal dimensions, important processing positions and relative positions.
Nanjing Ningrui handheld 3D laser scanner
The customer recognizes that the measuring equipment
The customer learned about our hand-held 3D laser scanner of Nanjing Ningrui metrology through the introduction of a friend, and checked the relevant knowledge on the Internet. He thought it was too suitable for the mapping of mechanical parts they wanted, so he found us.
Introduction to 3D laser scanner
When the portable 3D scanner T-scan works, the six beam laser is used to obtain the three-dimensional point cloud on the object surface. The operator can hold the equipment in his hand and adjust the distance and angle between the instrument and the measured object in real time. The operation is flexible, convenient and easy to learn. When scanning large volume objects, it can cooperate with the global photogrammetry system to eliminate the cumulative error and scan the size, shape and working environment of the scanned objects efficiently and accurately.
Operation of handheld 3D laser scanner and photogrammetry on products
Solution
The hand-held three-dimensional scanner is a mechanical mapping equipment. Firstly, the positioning mark points should be quickly pasted on the scanned products, and then the three-dimensional data of workpiece surface shape can be obtained quickly and accurately by using the mark points pasted on the workpiece surface through non-contact three-dimensional laser scanning; After the scanner obtains the high-precision data, the obtained data is compared with the existing digital analog, so as to obtain the product deviation and carry out cost analysis.
Scanning process
It takes 7 minutes to paste the marked points;
Data post-processing and comparison for 45 minutes.
Process display
3. Data comparison
summary
The grooved parts of the rotor body in the machine conform to the fit of the rotor gear and change the old comparison method. The use of 3D laser scanner is not only convenient and fast, but also can more accurately grasp the accuracy of each position, which brings better service to customers.
Reverse / comparative product presentation LW
Thread machining is one of the very important applications of CNC machining center. The machining quality and efficiency of thread will directly affect the machining quality of parts and the production efficiency of machining center.With the improvement of the performance of CNC machining center and the improvement of cutting tools, the method of thread machining is also improving, and the accuracy and efficiency of thread machining are also gradually improving. In order to enable technicians to reasonably select thread processing methods in processing, improve production efficiency and avoid quality accidents, several thread processing methods commonly used in CNC machining center are summarized as follows:1. Tap processing method
1.1 classification and characteristics of tap processingUsing tap to process threaded hole is the most commonly used processing method. It is mainly applicable to threaded holes with small diameter (d30) and low requirements for hole position accuracy.
In the 1980s, the flexible tapping method was adopted for threaded holes, that is, the flexible tapping collet was used to clamp the tap. The tapping collet can be used for axial compensation to compensate the feed error caused by the non synchronization between the axial feed of the machine tool and the spindle speed, so as to ensure the correct pitch. The flexible tapping collet has complex structure, high cost, easy damage and low processing efficiency. In recent years, the performance of CNC machining center Gradually, the rigid tapping function has become the basic configuration of CNC machining center.
Therefore, rigid tapping has become the main method of thread machining.That is, the tap is clamped with a rigid spring collet, and the feed of the spindle is consistent with the spindle speed controlled by the machine tool.Compared with the flexible tapping chuck, the spring chuck has the advantages of simple structure, low price and wide application. In addition to holding the tap, it can also hold the end milling cutter, drill bit and other tools, which can reduce the tool cost. At the same time, the rigid tapping can be used for high-speed cutting, improve the use efficiency of the processing center and reduce the manufacturing cost.
1.2 determination of threaded bottom hole before tappingThe processing of threaded bottom hole has a great impact on the life of tap and the quality of thread processing. Generally, the diameter of threaded bottom hole drill is close to the upper limit of the diameter tolerance of threaded bottom hole,For example, the bottom hole diameter of M8 threaded hole is 6.7 0.27mm, select the drill bit diameter as 6.9mm. In this way, the machining allowance of tap can be reduced, the load of tap can be reduced, and the service life of tap can be improved.
1.3 selection of tapWhen selecting taps, first of all, the corresponding taps must be selected according to the processed materials. The tool company produces different types of taps according to different processing materials, and special attention should be paid to the selection.
Because the tap is very sensitive to the processed materials compared with the milling cutter and boring cutter. For example, using the tap for processing cast iron to process aluminum parts is easy to cause thread dropping, disorderly threading and even tap breaking, resulting in workpiece scrapping. Secondly, pay attention to the difference between the through-hole tap and the blind hole tap. The front-end guide of the through-hole tap is long, and the chip removal is the front-end chip. The front-end guide of the blind hole is short, and the chip removal is the front-end It is the back chip. Machining the blind hole with a through-hole tap cannot guarantee the thread machining depth. Moreover, if a flexible tapping collet is used, it should also be noted that the diameter of the tap handle and the width of the four sides should be the same as that of the tapping collet; the diameter of the tap handle for rigid tapping should be the same as that of the spring jacket. In short, only a reasonable selection of the tap can ensure the smooth machining.
1.4 NC programming of tap machiningThe programming of tap machining is relatively simple. Now the machining center generally solidifies the tapping subroutine and only needs to assign values to various parameters. However, it should be noted that the meaning of some parameters is different due to different NC systems and different subroutine formats.For example, the programming format of Siemens 840C control system is g84 x_y_r2_r3_r4_r5_r6_r7_r8_r9_r10_r13_. Only these 12 parameters need to be assigned during programming.
2. Thread milling method2.1 characteristics of thread millingThread milling adopts thread milling tool and three-axis linkage of machining center, that is, x-axis and y-axis arc interpolation and z-axis linear feed.
Thread milling is mainly used to process large hole threads and threaded holes of difficult to process materials. It mainly has the following characteristics:(1) high processing speed, high efficiency and high processing precision. The tool material is generally cemented carbide, with fast tool walking speed. The manufacturing precision of the tool is high, so the milling thread precision is high.(2) the milling tool has a wide range of application. As long as the pitch is the same, whether it is left-hand thread or right-hand thread, one tool can be used, which is conducive to reducing the tool cost.
(3) milling is easy to remove chips and cool, and the cutting condition is better than that of tap. It is especially suitable for thread processing of difficult to process materials such as aluminum, copper and stainless steel, especially for thread processing of large parts and components of precious materials, which can ensure the thread processing quality and workpiece safety.(4) because there is no tool front-end guide, it is suitable for machining blind holes with short thread bottom holes and holes without tool return grooves.2.2 classification of thread milling tools
Thread milling tools can be divided into two types, one is the machine clamp cemented carbide blade milling cutter, and the other is the integral cemented carbide milling cutter. The machine clamp cutter has a wide range of applications. It can process holes with thread depth less than the blade length or holes with thread depth greater than the blade length. The integral cemented carbide milling cutter is generally used to process holes with thread depth less than the tool length.2.3 NC programming of thread millingThe programming of thread milling tool is different from that of other tools. If the processing program is wrong, it is easy to cause tool damage or thread processing error. The following points should be paid attention to during programming:
(1) firstly, the threaded bottom hole shall be processed well, the small diameter hole shall be processed with a drill, and the larger hole shall be bored to ensure the accuracy of the threaded bottom hole.(2) when cutting in and cutting out the tool, the arc path shall be adopted, usually 1 / 2 turn, and 1 / 2 pitch shall be traveled in the z-axis direction to ensure the thread shape. The tool radius compensation value shall be brought in at this time.(3) the x-axis and y-axis circular arc shall be interpolated for one week, and the main shaft shall travel a pitch along the z-axis direction, otherwise the threads will be buckled disorderly.
(4) specific example program: the diameter of thread milling cutter is 16. The threaded hole is M48 1.5, the depth of threaded hole is 14.The processing procedure is as follows:(the procedure of threaded bottom hole is omitted, and the bottom hole shall be bored) G0 G90 g54 x0 y0g0 Z10 m3 s1400 m8g0 z-14.75 feed to the deepest thread G01 G41 x-16 Y0 F2000 move to the feed position, add radius compensation G03 x24 Y0 z-14 I20 J0 f500 cut in with 1 / 2 circle of arc G03 x24 Y0 Z0 I-24 J0 F400 cut the whole thread G03 x-16 Y0 z0.75 I-20 J0 f500 cut out with 1 / 2 circle of arc G01 G40 x0 Y0 return to the center and cancel radius compensation G0 Z100M30
3. Snap method3.1 characteristics of snap methodLarge threaded holes can sometimes be encountered on box parts. In the absence of tap and thread milling cutter, the method similar to lathe pick-up can be adopted.
Install the thread turning tool on the boring bar to bore the thread.The company once processed a batch of parts with m52x1.5 thread and 0.1mm positional degree (see Figure 1). Because of the high positional requirements and large thread hole, it is impossible to process with tap and there is no thread milling cutter. After the test, the thread picking method is adopted to ensure the processing requirements.3.2 precautions for buckle picking method
(1) after the spindle is started, there shall be a delay time to ensure that the spindle reaches the rated speed.(2) during tool retraction, if it is a hand ground thread tool, because the tool cannot be grinded symmetrically, reverse tool retraction cannot be adopted. The spindle orientation must be adopted, the tool moves radially, and then the tool retraction.(3) the manufacturing of the cutter bar must be accurate, especially the position of the cutter slot must be consistent. If it is inconsistent, multiple cutter bars cannot be used for processing, otherwise it will cause disorderly buckle.
(4) even if it is a very fine buckle, it cannot be picked with one knife, otherwise it will cause tooth loss and poor surface roughness. At least two knives shall be divided.(5) the processing efficiency is low, which is only applicable to single piece, small batch, special pitch thread and no corresponding tool.3.3 specific procedures
N5 G90 G54 G0 X0 Y0N10 Z15N15 S100 M3 M8
N20 G04 X5 delay to make the spindle reach the rated speedN25 G33 z-50 K1.5 turnbuckleN30 M19 spindle orientation
N35 G0 X-2 cutterN40 G0 z15 tool retractionEditing: JQ
"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.
What is POM?
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.
Why use POM for CNC machining?
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:
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It is lightweight, wear-resistant and has low friction properties.
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POM's low friction capability means it can be used in high-precision rotating parts, such as automotive bushings, bearings and gears.
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POM is similar to acrylic because of its inherent optical transparency and crystallinity.
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Delrin comes in a variety of textures, colors and grades.
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POM CNC machining is essential for high volume production and runs efficiently.
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It has a lower heat absorption rate compared to other grade polymers such as nylon and polyethylene.
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Evolved into CNC POM prototyping, CNC machining plays a key role in prototyping.
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Delrine or POM is also known as metallic plastic or super steel because of its high rigidity and strength.
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POM can be efficiently milling, drilling, grooving and cutting with CNC machining.
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Manufacturers can use it for a variety of applications such as aerospace, automotive and consumer goods.
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Design engineers can benefit from its dimensional stability and achieve tighter tolerances of ±0.0005 inches.
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Rapid prototyping with CNC machining is feasible.
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CNC lathes are also available for POM machining.
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It describes low-cost solutions and offers economic benefits when produced in large volumes.
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POM is a common technique; For example; CNC machining, injection molding, and 3D printing.
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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.
List of Delrin grades for CNC machining
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.
Surface treatment options for POM
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.
What are the limitations of Delrin CNC machining?
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.
Delrin NC machining applications
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!
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