Dongguan Yexin Intelligent Technology Co., Ltd.
Precision in Every Part, Excellence in Every Detail
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Stainless Steel CNC Custom Machining Parts Precision CNC Machining Service
CNC Lathe Milling Parts Aluminum Turning Parts
CNC machining is a subtractive manufacturing process that automates the removal of material from
raw stock using computer-generated instructions.
Typically, CNC machines fall into two categories: those that keep the raw stock stationary while the
cutting tool rotates, and those that rotate the raw stock while moving it against a stationary tool.
Various machines incorporate these principles in different ways, often combining them to create
intricate parts with complex features.
Product Details
CNC machining is highly versatile and compatible with a wide range of materials, including metals,
plastics, wood, glass, foam, and composites.
This versatility has made CNC machining a popular choice in various industries, offering efficient
and precise fabrication for designers and engineers.
The most common materials are:
| Common Metal Materials for CNC Machining | |
| Metal Material | Properties |
| Aluminum | 2024: Good fatigue resistance and strength; excellent toughness at moderate to high strength levels; improved fracture toughness |
| 6061: Excellent machinability, low cost, and versatility | |
| 7075: High strength, hardness, low weight, and heat tolerance | |
| Stainless steel | Excellent machinability and outstanding uniformity; good workability and weldability, high ductility and formability |
| Steel Alloy | Mix of chromium, molybdenum, and manganese yields toughness, good torsional and fatigue strength |
| Brass | Versatile and highly attractive copper/zinc alloy with warm yellow color accommodates severe forming/drawing |
| Copper | High ductility and high electrical and thermal conductivity; develops attractive blue-green surface patina over time |
| Titanium | Excellent strength to weight ratio, used in aerospace, automotive, and medical industries |
| Steel Mild Low Carbon | High machinability and weldability, high stiffness; good mechanical properties, machinability, and weldability at low cost |
| Surface Finishes | ||
| Name | Applicable to | Machining marks |
| As machined | Metals, Plastics | Visible, light surface scratches |
| Smooth machining | ||
| Fine machining | Metals | Slightly visible |
| Polishing | Metals | Removed on primary surfaces |
| Bead blasting | Metals | Removed for non-cosmetic, removed on primary surfaces for cosmetic |
| Brushing | Metals | |
| Anodizing Type II | Aluminum | |
| Anodizing Type III | Aluminum | Visible under anodizing |
| Black oxide | Copper, Stainless steel, Alloy steel, Tool steel, Mild steel | Visible |
| Powder coating | Metals | Removed |
| Brushed + electropolishing | Stainless steel | Removed on Primary surfaces |
CNC Machining Applications
CNC machining is widely used throughout the aerospace, medical, automotive industries for its ability
to rapidly manufacture precise parts in production-grade materials.
Typical CNC parts, include:
1. Housings and enclosures
2. Brackets
3. Fixtures for manufacturing
4. Gears and bearings
5. Internal mechanical components
6. Medical instrumentation
Company Profile
FAQ's
1. What type of design files does We accept for quoting?
To ensure a precise and prompt quotation, we exclusively accept 3D CAD files in STL, STEP, or
IGES formats. 2D drawings containing reference dimensions should be submitted in PDF format.
Comprehensive manufacturing information should be included in this technical documentation.
Informal communication through email, Whatsapp, Wechat, Skype, etc., will not be recognized
for manufacturing purposes.
2. How long does it take to receive a quotation?
Typically, we aim to provide a response within one days upon receiving an RFQ.
If there is a delay in generating the quote, we will promptly inform you.
3. How do you speed up CNC manufacturing?
The pace of manufacturing in CNC machining is influenced by various factors, encompassing part design
and the desired surface finish.
One illustrative approach to expedite the machining process is by incorporating fillets instead of sharp
corners in your design.
This design adjustment allows for the use of standard tools throughout production, eliminating the need
for tool changes during machining and thereby enhancing manufacturing speed.
4. What's the general surface texture of CNC milled and turned parts?
In the realm of CNC machining, as-machined milled parts typically exhibit a surface roughness of
approximately 3.2μm (or 1.6μm in the case of relatively new machines).
On the other hand, when it comes to turned parts, we can achieve a smoother surface with a roughness
of 0.8μm.
This means that machining speed adjustments are not necessary to attain this level of surface finish.