Dongguan Yexin Intelligent Technology Co., Ltd.
Precision in Every Part, Excellence in Every Detail
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CNC Machining, short for Computer Numerical Control Machining, encompasses various types of
machines that employ computer-controlled tools to subtract material from a workpiece.
This computerized control distinguishes CNC machining as a method that surpasses conventional
machining in terms of speed, precision, and accuracy.
Product Details
| Common Materials | |
| Name | Description |
| Aluminum | High machinability and ductility, good strength-to-weight ratio. |
| Stainless steel | High tensile strength, corrosion and temperature resistant. |
| Mild steel | High machinability and weldability, high stiffness. |
| Brass | Low friction, excellent electrical conductivity, golden appearance. |
| Copper | Excellent thermal and electrical conductivity. |
| Titanium | Excellent strength to weight ratio, used in aerospace, automotive and medical industries. |
| ABS | Common thermoplastic, impact resistant, easy to machine. |
| 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 |
Appliaction of CNC Parts
1. Aerospace Components: Precision machining for the creation of intricate parts, ensuring
reliability and safety in aerospace applications.
2. Furniture: Crafting precise components for furniture, ranging from ornate designs to functional
pieces.
3. Medical Components: Manufacturing critical parts for medical devices and instruments, meeting
stringent standards for quality and accuracy.
4. Prototypes: Rapid prototyping for product development, allowing efficient testing and iteration
of designs.
5. Titanium Pieces: Machining of titanium components, known for its strength and durability,
often used in aerospace and medical applications.
6. Woodworking: Precision woodworking to create finely detailed and finished wooden components.
These applications showcase the versatility of CNC milling, making it a go-to technology for industries
that demand accuracy and complexity in their manufactured parts.
Company Profile
FAQ's
1. What are standard machining tolerances?
The standard machining tolerance is ± 0.005" or 0.13mm, representing the allowable range for
a dimension. For instance, if a CNC machining tool has a tolerance of ± 0.01 mm, it implies a
permissible deviation of 0.01 mm in each cut.
With a provided drawing, our CNC machining service can achieve part tolerances as low as
± 0.0002 in. In the absence of a drawing, all CNC parts adhere to our ISO 2768 medium standard.
For projects demanding tighter tolerances, ±0.025mm or ±0.001", we can accommodate with an
engineering drawing specifying critical features.
2. What size of fillets are added when no specific fillet is specified by the 3D model
or drawing?
In the absence of a specified fillet radius in the 3D model or drawing, the machinist will add fillet
radii based on discretion to facilitate easy machining. Should a specific fillet radius be required,
clear specification is essential.
As a general guideline, internal vertical edge radii might exceed 1/3 of the depth, while internal
horizontal edges may either be left sharp or feature a radius ranging from 0.5mm to 1mm.
3. How long does delivery time and quotation take?
The delivery time for parts is determined by their complexity. Parts with low complexity typically
have a lead time of 2-3 days, while moderate complexity extends the lead time to 2-5 days.
High-complexity parts may require 5 to 15 days for delivery. Quoting time varies based on design
complexity, ranging from 1 business day (or faster) for simpler designs to 3+ business days for
more intricate ones. For an assessment and quote for your design, please feel free to reach out to
our team.
4. What are the advantages of CNC machining?
The advantages of CNC machining are multifaceted, including rapid prototyping and the swift
production of full-scale parts. Notably, it excels in delivering high precision and accuracy in
manufacturing across various part sizes.
CNC machining enables tight tolerance machining for parts of all dimensions.
Furthermore, it provides unparalleled flexibility in terms of volume, pricing, lead times, and the
diverse range of materials and finishes utilized.