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Categories | CNC Milling Parts |
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Brand Name: | Zhongwei |
Model Number: | OEM ODM |
Certification: | ISO9001:2015 |
Place of Origin: | Guangdong, China |
MOQ: | 2 |
Price: | Negotiable.. |
Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
Supply Ability: | 10000Pcs/ Month |
Delivery Time: | 7-14 work days |
Packaging Details: | Customized packaging as required |
Material Capabilities: | Aluminum, Brass, Bronze, Copper, Hardened Metals, Precious Metals, Stainless Steel, Steel Alloys, Other |
Type: | CNC Machining Services |
Service: | OEM-ODM |
Application: | Machine, electronic components,Auto,Madical,Motor |
Tolerance: | +/-0.01mm |
Company Info. |
Dongguan Zhongwei Metal Products Co., Ltd |
Verified Supplier |
View Contact Details |
Product List |
CNC (computer numerical control) milling is a high-precision machining technology that uses a rotating milling cutter to remove material from a workpiece to produce complex two-dimensional and three-dimensional parts. The following is a detailed description of the precision and surface finish of CNC milled parts:
Precision
The precision of CNC milling depends on several factors, including
the accuracy of the machine tool, the quality of the milling
cutter, the accuracy of programming, and various conditions during
the machining process.
Machine tool accuracy:
CNC milling machines generally have high repeatability, usually
ranging from a few microns (μm) to tens of microns.
The structural stability of the machine tool, the accuracy of the
guide rails, and the spindle runout all affect the final machining
accuracy.
Milling cutter:
The size, shape, and quality of the milling cutter have a direct
impact on the machining accuracy. Precision milling cutters can
produce finer details and higher dimensional accuracy.
Programming:
CNC programming software can accurately control the tool path,
reduce human errors, and improve the machining accuracy of parts.
Machining conditions:
The reasonable selection of parameters such as cutting speed, feed
rate, and cutting depth can improve machining accuracy.
Generally, CNC milling can achieve the following accuracy levels:
IT7 to IT8 (ISO 2768-1) for general industrial applications.
For high-precision machining, it can reach IT6 or even higher.
Surface treatment
The surface treatment of parts after CNC milling is to improve
appearance, improve corrosion resistance, enhance wear resistance
or meet specific functional requirements. The following are some
common surface treatment methods:
Grinding and polishing:
Fine grinding can further improve the surface finish of parts,
reduce roughness and achieve a mirror effect.
Polishing can remove minor surface defects and improve the
appearance quality.
Anodizing:
For aluminum parts, anodizing can form a protective oxide film to
improve corrosion resistance and hardness.
Electroplating:
Electroplating can deposit a layer of metal such as nickel,
chromium, zinc, etc. on the surface of parts to provide protection
or decorative effects.
Coating:
Application of technologies such as PVD (physical vapor deposition)
and CVD (chemical vapor deposition) to coat a layer of hard
materials such as titanium carbide, titanium nitride, etc. on the
surface of parts to improve wear resistance and corrosion
resistance.
Painting and coating:
Painting can provide a variety of colors and effects, while
providing a certain degree of protection.
Heat treatment:
Heat treatment can change the hardness, strength and toughness of
parts, which is essential for improving the wear resistance and
extending the service life of parts.
The precision and surface treatment of CNC milling parts are key
factors to ensure the quality and performance of parts. They need
to be customized according to specific engineering requirements and
application environments. Through precise processing parameters and
appropriate post-processing processes, CNC milling can produce
precision parts that meet various industrial standards.
FAQ:
Q1: Are you a factory or a trading company?
A1: We are a factory, located in Tangxia, Dongguan, China. Welcome
to visit our factory.
Q2: What are our advantages compared with other companies?
A2:1). Manufacturing, low procurement cost, competitive price.
2). With 15 years of experience.
3). Fast delivery: Our company promises to provide on-time
delivery.
4). Provide OEM service.
5). Quality control: 100% inspection, inspection report can be
provided if necessary.
6). Provide samples, we promise to answer any of your questions
within 12 hours.
Q3. Can you strictly follow the tolerances on the drawings and meet
high precision requirements?
A3: Yes, we can, we can provide high precision parts and
manufacture parts according to your drawings.
Q4: How long does it take to quote?
A4: After receiving detailed information (your 2D/3D drawings or
samples), we will give you a quote within 2 days.
Q5: I want to keep our design confidential, can we sign a
confidentiality agreement?
A5: Yes, we can sign a confidentiality agreement, we will not show
any customer design or display to others.
Q6: Can I know how my product is progressing without going to your company?
A6: Yes. We will send weekly reports with digital pictures and videos to show the production process
Q7: How do you ensure quality?
A7: We have a QC department to control quality from the beginning of production to the completion of goods. We have a full set of inspection equipment, and each batch of goods will be accompanied by a QC report.
Q8: What drawing format is required for production?
A8: Both 2D and 3D are acceptable. 2D formats such as PDF, CAD, JPG, etc. 3D formats such as STEP, STP, IGS, STL, etc.
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