The functioning of CNC machining is characterized by subtractive processes, wherein the feedstock
is machined to its final form by the removal of material.
This process encompasses activities such as drilling holes, boring lots and pathways, and shaping
metal stock into new material with varying tapers, diameters, and shapes.
Unlike additive manufacturing methods that involve the addition, layering, and deformation of
materials to achieve a specified shape, CNC machining achieves shapes through the removal of
material. This sets it apart from injection molding, where material is injected in a different state
of matter using a mold and formed to a predetermined shape.
Product Details
Common Metal Materials for CNC Machining | |
Metal 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 | |
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 |
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 |
Titanium | Excellent strength to weight ratio, used in aerospace, automotive, and medical industries |
Steel Mild Low Carbon | High machinability and weldability, high stiffness; good mechanical properties, machinability, and weldability at low cost |
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 |
CNC Machining Applications
Our extensive production experience, spanning millions of components for diverse applications,
showcases a particular focus and proficiency in the following specialized industries:
1. Aerospace & Aviation: With precision at the forefront, our components meet the rigorous
criteria of the aerospace and aviation sectors, delivering reliability and performance in crucial
applications.
2. Automotive: From essential engine components to intricate systems, our proven expertise in
manufacturing high-quality parts significantly contributes to the efficiency and safety of
automotive technologies.
3. Industrial Machinery: Our capabilities extend to the production of components powering
industrial machinery, ensuring durability and precision to meet the multifaceted demands of
manufacturing processes.
4. Consumer Electronics: We excel in crafting components for consumer electronics, actively
contributing to the advancement and functionality of state-of-the-art electronic devices.
5. Robotics & Automation: In the ever-evolving landscape of robotics and automation, our
precision components play a pivotal role, enhancing the seamless operation and efficiency of
robotic systems.
6. Medical: Precision takes precedence in the medical industry, and our purpose-designed
components meet the exacting standards of medical applications, fostering continuous progress
in healthcare technology.
Our unwavering dedication to excellence and specialized knowledge within these industries
positions us as a trusted partner, ensuring that our components consistently meet the unique
requirements and standards of each sector.
Company Profile
FAQ's
1. What are your tolerances for machined parts?
Our machined parts adhere to precision standards, featuring +.005”/- .005” local tolerances
across most metal geometries and +/- 0.010" for plastics. It's worth noting that tolerances
may vary for larger parts, especially with considerations for flatness post heat treatment.
An "As Milled" finish for CNC parts requires a minimum surface finish of 125. Fabricated parts
maintain a 0.010” dimensional tolerance and a 1° angular tolerance.
Tapped holes not explicitly labeled as features in the CAD model may be machined based on
the specified diameters. Crucially, surface treatments such as anodizing, bead blasting,
iriditing, powder coating, etc., will only be applied upon explicit payment and acknowledgment.
2. Why choose CNC machining?
The decision to leverage CNC machining is driven by its attributes of speed, accuracy,
and versatility. This manufacturing solution excels in delivering end-use parts across different
volumes with notable efficiency, eliminating the need for substantial investments in hard tooling
or intricate set-ups.
3. How long does delivery time and quotation take?
The lead time for parts is contingent on their complexity. Parts with low complexity typically
boast a lead time of 2-3 days, while moderate complexity extends the lead time to 2-5 days.
High-complexity parts may require a lead time ranging from 5 to 15 days. Quoting time is
influenced by design complexity, with a range of 1 business day (or faster) for simpler designs
to 3+ business days for more intricate ones. If you have a design awaiting assessment and
quoting, feel free to get in touch with our team.
4. What are the advantages of CNC machining?
The advantages of CNC machining are prominent, with rapid prototyping and efficient full-scale
production at the forefront. A distinguishing feature is its capacity for high precision and accuracy
in manufacturing, extending to tight tolerance machining for CNC parts spanning various sizes.
Beyond this, CNC machining offers unmatched flexibility in addressing volume needs, pricing
considerations, lead times, and the utilization of a broad spectrum of materials and finishes.