The CNC machining process, standing for computer numerical control machining, is a subtractive
manufacturing approach that utilizes a synergy of computerized controls and machine tools to
eliminate layers from a solid block of material.
Programming dictates the desired cuts in the metal, aligning them with specific tools and machinery,
and the automated process executes the machining task accordingly.
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 turning machines showcase their versatility by crafting an array of parts with varying
intricacies. Among the parts manufactured are shafts and axles, ideal for industries like automotive
and aerospace.
Additionally, CNC turning is adept at producing precision bushings and bearings crucial for reducing
friction in mechanical assemblies. The scope extends to connectors, fittings, fasteners such as
screws and nuts, as well as valves and valve components.
Furthermore, CNC turning plays a pivotal role in creating tooling components like inserts,
toolholders, and bodies, contributing to enhanced efficiency and accuracy in machining operations.
In the automotive sector, CNC turning is harnessed for crafting engine components, pulleys, brackets,
and specialized parts.
Company Profile
FAQ's
1. The cost of CNC machining a part is shaped by a variety of factors, including:
1. Material: Material selection introduces cost variations, with materials like aluminum being more
economical to machine compared to others like Inconel, attributed to factors such as tool wear
and cutting speeds.
2. Complexity: Parts featuring intricate designs incur higher machining costs. The complexity of
surface shapes, for instance, significantly influences overall machining expenses.
3. Tolerances: The precision demanded by dimensional tolerances impacts CNC machining costs.
Imposing overly tight tolerances on non-critical features can lead to unnecessary cost escalation.
4. Surface Finish: Achieving mirror finishes demands specialized tools and machining strategies,
extending machining time and, consequently, increasing costs.
5. Quantity: Production volume is a key determinant of costs. Low-volume production tends to be
costlier per part, as initial setup and programming costs are distributed over a smaller production
run.
2. What size of fillets are added when no specific fillet is specified by the 3D model
or drawing?
In cases where no specific fillet radius is specified in the 3D model or drawing, fillet radii will be
added by the machinist based on their judgment to enhance machining ease.
To ensure a desired fillet radius, specific details should be provided. For a general understanding,
internal vertical edge radii might surpass 1/3 of the depth, and internal horizontal edges may either
be maintained sharp or incorporate a radius within the range of 0.5mm to 1mm.
3. Quality Assurance
Customer trust is a cornerstone of our values, and we are dedicated to upholding it through the
implementation of established quality management principles. Our focus is on enhancing customer
satisfaction and perpetually improving our performance and capabilities.
With a wealth of experience spanning decades, we have consistently met stringent regulations and
maintained PPAP compliance, particularly in the automotive, aerospace, and medical device industries.
These industries serve as benchmarks for the high standards we apply to all the products we
manufacture.