CNC machining, or Computer Numerical Control machining, constitutes a subtractive manufacturing
method employed for the creation of parts through the removal of material from a workpiece or
workpiece stock.
The machine's movement is controlled by preprogrammed software and codes, guiding the
precision of material removal. This versatile process encompasses various machinery, including
turning mills, lathes, grinders, and plasma-cutting machines.
Product Details
Stainless Steel Finishing and Post-Processing
Name | Machining Marks |
Brushed + electropolishing | Removed on Primary surfaces |
Electroless nickel plating | Reduced but visible |
As machined | Visible, light surface scratches |
Smooth machining | Visible, light surface scratches |
Fine machining | Slightly visible |
Polishing | Removed on primary surfaces |
Bead blasting | Removed for non-cosmetic, removed on primary surfaces for cosmetic |
Brushing | Reduced for non-cosmetic, removed on primary surfaces for cosmetic |
Powder coating | Removed |
Black oxide | Visible |
Stainless Steel Machining Services
Our state-of-the-art machine shops are equipped to manufacture tailor-made stainless steel
components utilizing CNC turning machines and 3- and 5-axis CNC milling machines.
Our facilities boast a diverse range of 11 stainless steel types, including Stainless Steel 304,
Stainless Steel 316, Stainless Steel 303, Stainless Steel 17-4PH, Stainless Steel 416,
Stainless Steel 2205 Duplex, Stainless Steel 420, Stainless Steel 440C, Stainless Steel 430,
Stainless Steel 301, and Stainless Steel 15-5, enabling us to meet a wide array of project
requirements.
Common Stainless Steel Materials | |
No. | Properties |
Stainless steel 304/304L | Stainless steel 304L (CNC) has excellent mechanical properties and good machinability. Resistant to most environments and corrosive media. |
Stainless steel 316/316L | Stainless steel 316L (CNC) has similar mechanical properties to 304, with higher corrosion and chemical resistance. Ideal for marine applications. |
Stainless steel 303 | Stainless steel 303 (CNC) has excellent toughness, but lower corrosion resistance than 304. Ideal for high volumes, due to its excellent machinability. |
Stainless Steel 17-4 PH | Stainless steel 17-4 (CNC) - SAE grade 630 - is a precipitation hardening alloy with good corrosion resistance. Can be hardened up to 44 HRC. |
Stainless steel 416 | Stainless steel 416 is magnetic and has a high machinability. |
Stainless steel 2205 Duplex | Stainless steel 2205 Duplex (CNC) is the alloy with the highest strength and hardness. Suitable for applications in severe environments up to 300°C. |
Stainless steel 420 | Stainless steel 420 provides high strength and corrosion resistance. It is the hardest of all stainless steels when hardened. |
Stainless steel 440C | Stainless steel 440C has improved toughness and corrosion resistance due to Carbon and Chromium content. |
Stainless steel 430 | Stainless steel 430 is magnetic and corrosion resistant. |
Stainless steel 301 | Stainless steel 301 is corrosion resistant similar to Stainless steel 304. |
Stainless steel 15-5 | Stainless steel 15-5 has a higher toughness than 17-4, better corrosion resistance and transverse properties compared to other similar martensitic grades. |
CNC Machining Applications
CNC machining, as a versatile subtractive manufacturing method, plays a vital role across diverse
industries. Here are some key sectors where CNC machining is heavily utilized:
1. Aerospace: The aerospace industry relies on CNC machining to produce intricate and
high-precision components for aircraft and spacecraft, ensuring optimal performance and safety.
2. Automotive: CNC machining is integral to the automotive sector for crafting precise
components, contributing to the efficiency and reliability of vehicles.
3. Aviation: Similar to aerospace, the aviation industry benefits from CNC machining's precision
in manufacturing components that meet stringent safety and performance standards for aircraft.
4. Transportation: The broader transportation industry, including rail and maritime sectors,
employs CNC machining to fabricate robust and precise components that withstand challenging
operational conditions.
These industries showcase the widespread adoption of CNC machining, highlighting its
indispensable role in manufacturing processes where accuracy, consistency, and intricate
detailing are essential.
Company Profile
FAQ's
1. What type of design files does We accept for quoting?
To ensure accuracy and efficiency in quoting, we exclusively welcome 3D CAD files in STL, STEP,
or IGES format. For 2D drawings with reference dimensions, kindly provide them in PDF format.
Complete manufacturing information must be included in the technical documentation for a
thorough assessment. Please note that informal communication via Whatsapp, email, etc.,
will not be acknowledged for manufacturing purposes.
2. How long does a quotation take?
You are welcome to use your own material for production, provided it is compatible with the
capabilities of our machines.
3. What are your tolerances for machined parts?
Our standards for machined parts encompass +.005”/- .005” local tolerances across most metal
geometries and +/- 0.010" for plastics.
Notably, these tolerances may vary for larger parts, particularly concerning flatness after heat
treatment. Achieving an "As Milled" finish for CNC parts necessitates a minimum surface finish
of 125.
Fabricated parts adhere to a 0.010” dimensional tolerance and a 1° angular tolerance.
Tapped holes not explicitly marked as features in the CAD model may be machined according to
the specified diameters. Importantly, surface treatments, including anodization, bead blasting,
iriditing, powder coating, etc., will only be applied if explicitly paid for and acknowledged.
4. What's the general surface texture of CNC milled and turned parts?
In the realm of CNC machining, milled parts typically display a surface roughness of approximately
3.2μm (or 1.6μm for newer machines). In contrast, turned parts exhibit a finer surface texture with
a roughness of 0.8μm. Importantly, this finer surface finish in turning is achieved without the need
for adjusting machining speeds.