Dongguan Yexin Intelligent Technology Co., Ltd.
Precision in Every Part, Excellence in Every Detail
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While traditional machining involves a skilled machinist manually operating a machine to remove
or shape metal based on specifications from designers and engineers, CNC machining performs
the same metal cutting, drilling, milling, boring, grinding, and other metal forming and removal
functions with a crucial distinction — it employs computer numerical control rather than manual
operation.
Traditional machining relies on tools such as turn wheels, dials, switches, chucks, vices, and
cutting tools made of materials like hardened steel, carbide, and industrial diamond.
Measurements are taken to ensure accuracy. In contrast, CNC machining is automated and
code-driven, developed by programmers. It delivers consistent precision from the initial cut to
subsequent repetitions, making it suitable for digital manufacturing and low-volume production.
CNC machining's advantage lies in its flexibility for revisions and alterations, accommodating
modifications and different materials with ease. While traditional machining retains its place,
CNC machining has largely taken over in manufacturing, fabrication, and industrial production
due to its superior precision and automation.
Product Details
CNC machining materials are generally grouped into three primary categories:
plastics, soft metals, and hard metals. This classification includes materials such as aluminum,
bronze, copper, ceramics, plywood, steel, stone, wood, zinc, and various others.
Preference is often given to materials that are considered easy to work with and possess
advantageous properties compared to 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 | |
| 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 |
| 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 |
| Steel Mild Low Carbon | High machinability and weldability, high stiffness; good mechanical properties, machinability, and weldability at low cost |
| Titanium | Excellent strength to weight ratio, used in aerospace, automotive, and medical industries |
| ABS | Excellent impact resistance, good mechanical properties, susceptible to solvents |
| Nylon | Excellent mechanical properties, high toughness, poor moisture resistance |
| POM | High stiffness, excellent thermal & electrical properties, relatively brittle |
| 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. | ||
CNC Machining Applications
The utilization of CNC machining spans a multitude of industries, with a significant presence in
aerospace, automotive, consumer electronics, robotics, and agriculture, particularly in the
production of metal components.
Beyond these, CNC machining is integral to the manufacturing processes of medical devices,
household goods, and various consumer applications. Its prevalence extends into sectors such
as energy, oil and gas, making CNC machining one of the most pervasive and essential
manufacturing techniques globally.
Company Profile
FAQ's
1. How much import duty will I need to pay for my goods?
The amount of import duty for your goods is not standardized and varies based on several factors.
In Australia, the introduction of new CHAFTA regulations allows for a progressive implementation
of duty-free imports. Import duties differ widely and are determined by the type of goods being
imported. Globally, most countries adhere to international Harmonized System (HS) codes,
which categorize nearly all commercial trade goods.
2. What if I am not completely satisfied with the parts I receive?
We assure the quality of our materials and workmanship based on the terms specified in the initial
order and the information you provide. Disputes arising from subjective assessments will be
handled by our management, who will act in good faith to secure your complete satisfaction.
Our sustained success hinges on earning your confidence in our ability to consistently meet
and exceed reasonable expectations.
3. Do you offer Quick-Turn CNC Machining?
Indeed! Our Quick-Turn CNC Machining services provide fast lead times for parts, with many available
within 3-4 days. We also offer an expedite option, and our team is dedicated to working closely with
you to meet your most pressing deadlines.