Dongguan Yexin Intelligent Technology Co., Ltd.
Precision in Every Part, Excellence in Every Detail
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Custom CNC Milling Parts Manufacturer Oem Machining Part Stainless Steel
CNC Machining Parts
CNC milling is a subtractive manufacturing process that begins by securing a block of metal or
plastic material within the CNC mill. Using G-code, the CNC machine is programmed to efficiently
mill out components from the raw material block. Our 3- and 5-axis CNC machines are equipped
with various toolsets to optimize efficiency and production speed.
Plastic machined parts are typically left in an as-milled state, which may exhibit visible tool marks.
Certain metal parts offer additional finishing options, such as anodizing and chromate plating.
Once the production run is finished and the desired surface finish is applied, the parts are promptly
packaged and shipped.
Product Details
Materials for CNC machining are typically classified into three major categories: plastics,
soft metals, and hard metals. Examples encompass aluminum, bronze, copper, ceramics,
plywood, steel, stone, wood, zinc, and various others.
Materials characterized by ease of manipulation and favorable properties are commonly
preferred over alternative options.
| Common Materials for CNC Machining | |
| 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 |
| Titanium | Excellent strength to weight ratio, used in aerospace, automotive, and medical industries |
| Copper | High ductility and high electrical and thermal conductivity; develops attractive blue-green surface patina over time |
| ABS | Excellent impact resistance, good mechanical properties, susceptible to solvents |
| PEEK | High-performance thermoplastic, very high strength, thermal and chemical resistant |
| POM | High stiffness, excellent thermal & electrical properties, relatively brittle |
CNC Machining Tolerances
Tolerances are not standardized across all processes and materials.
The final tolerances on your part depend on various factors, such as part size, design complexity,
the number and size of features, materials used, surface finish, and the manufacturing process
employed.
Once your order is confirmed, we conduct a Design for Manufacturing review to identify areas that
may need modification for better manufacturability.
It's helpful if you can specify which areas in your design have critical tolerances that must be met
and which can be adjusted, if necessary, to optimize production time and cost.
| CNC Milling Tolerances | ||
| Limits for nominal size | Plastics | Metals |
| 0.5mm* to 3mm | ±0.1mm | ±0.05mm |
| Over 3mm to 6mm | ±0.1mm | ±0.05mm |
| Over 6mm to 30mm | ±0.2mm | ±0.10mm |
| Over 30mm to 120mm | ±0.3mm | ±0.15mm |
| Over 120mm to 400mm | ±0.5mm | ±0.20mm |
| Over 400mm to 1000mm | ±0.8mm | ±0.30mm |
| Over 1000mm to 2000mm | ±1.2mm | ±0.50mm |
| Over 2000mm to 4000mm | ±2.0mm | |
| *Please clearly indicate tolerances for nominal sizes, below 0.5mm on your technical drawing. | ||
Common Applications of CNC Milling Parts
CNC milling machines let operators create complex designs with very tight tolerances.
As a result, it is one of the most accurate manufacturing techniques to date.
Here’s a look at the products you can create:
1. Aerospace components such as landing gear components, fuselage structures
2. Components for the automotive industry such as control panels, axles, car molds
3. Consumer electronics components such as enclosures
4. Medical components such as surgical instruments, orthotics
5. Oil and gas machine parts such as valves, rods, pins
6. Prototyping and modeling
7. Sculptures
8. Furniture
9. Woodworking
Company Profile
FAQ's
1. What kind of surface finishes does offer?
Our array of finishing services is diverse, allowing us to achieve nearly any desired aesthetic and
tactile quality for your parts. From treatments for metals to texturing for plastic injection mold tools,
and from painting metal to plastic, we offer a comprehensive selection of finishes.
If you're interested in understanding how to specify the surface texture you have in mind, our
blog provides valuable insights.
2. Can my parts undergo passivation?
Passivation, a surface treatment altering the chemistry of specific metals, is available as a service.
We offer passivation with the goal of improving corrosion protection, durability, cosmetic appeal,
and other desired attributes.
3. What will be the import duty cost for my goods?
Determining the precise import duty amount is complex, as it depends on several factors.
For customers in Australia, the recent CHAFTA regulations allow for a phased implementation
of duty-free imports. Import duties vary widely across countries and hinge on the nature of the
imported goods. Most countries globally follow the international Harmonized System (HS) codes,
providing a systematic classification for nearly all commercial trade goods.
4. What shipping terms do you operate under?
Our standard shipping terms are Ex Works (EXW) for both rapid prototyping and regular production
orders. In this scenario, the customer takes charge of shipping, customs clearance, and any related
fees once the goods have been dispatched from our premises.
For express shipments, we employ Delivered Duty Unpaid (DDU). This places the responsibility on
the client to cover the import duty upon the goods' arrival at the specified destination.