Custom Service CNC Machining Steel Turning Part Lathe CNC Machining Parts
The most suitable application for CNC machining lies in one-off manufacturing endeavors and in
low-to-medium volume production scenarios, typically ranging from several hundred to 1000 parts.
Opting for CNC machining is particularly advantageous when aiming for cost-competitive metal
prototypes. Additionally, the technology shines in situations where the parts necessitate extremely
tight tolerances for precision.
Product Details
The primary focus of the CNC machining process revolves around metals, incorporating alloy steel,
carbon steel, cast iron, stainless steel, aluminum, copper, magnesium, and zinc.
Nevertheless, CNC machining extends its capabilities beyond metals to encompass plastic parts
and other materials, including ceramics, composites, thermoplastics, and thermosets.
| 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. |
| POM | High stiffness, high accuracy, low friction, easy to machine. |
| ABS | Common thermoplastic, impact resistant, easy to machine. |
| Nylon | Excellent mechanical properties, thermal, chemical and abrasion resistant. |
CNC Machining Tolerances
Typical machining tolerances fall within the range of ± 0.005 inches or 0.13 millimeters.
Tolerances represent the allowable variation for a specific dimension.
For instance, if a CNC machining tool has a tolerance of ± 0.01 millimeters, it means that the tool
can deviate by 0.01 millimeters in each cut.
When provided with a drawing, Our CNC machining service can achieve CNC parts with tolerances
as tight as ± 0.0002 inches.
In the absence of a drawing, all CNC parts are manufactured according to our ISO 2768 medium
standard. We can also work to even tighter tolerances, such as ± 0.025 millimeters or ± 0.001
inches, when an engineering drawing specifies critical features.
| CNC Turning 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. |
Applications of CNC Turning
CNC machinery plays a pivotal role in multiple industries, including aerospace, automotive parts
manufacturing, medical machine manufacturing, transportation, defense, marine, oil and gas,
and electronics.
Across these sectors, CNC machining has emerged as a catalyst for efficiency, enabling the mass
production of tailored CNC parts. The technology's impact ranges from crafting intricate components
for aerospace applications to ensuring precision in medical device manufacturing, showcasing the
versatility and significance of CNC machinery in modern industrial processes.
Company Profile
FAQ's
1. 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.
2. 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.
3. 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.
4. Quality Assurance
We prioritize customer trust, integrating established quality management principles to elevate
customer satisfaction and perpetually enhance our performance and capabilities.
With decades of experience, we consistently meet stringent regulations and maintain PPAP
compliance for industries such as automotive, aerospace, and medical devices.
These standards serve as benchmarks, ensuring the quality of all products we manufacture.
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