Views: 0 Author: Ada Liu Publish Time: 2024-07-12 Origin: Site
CNC machining is widely used across various industries due to its high precision capabilities. However, CNC machining services may be more expensive compared to other manufacturing methods such as injection molding, die casting, and stamping. Several factors influence the cost of CNC machined parts, including:
1. Equipment
Initial purchase, operation, and maintenance costs impact the per-part cost. Higher costs associated with machines translate to pricier parts. For instance, milling machines are costlier than lathes due to their complexity.
2. Design Costs
Expenses incurred in preparation for machining, including CAD (design), CAE (analysis), and CAM (programming). While these costs are fixed, they can decrease per part with larger production volumes.
3. Material
The cost of raw materials, usage, and processing time influence part costs. Opting for materials based on function rather than cost is essential. Minimizing material usage and selecting materials with good machinability can reduce costs.
4. Production Quantity
Unit costs significantly decrease with larger production volumes due to the elimination of repetitive design and setup costs.
5. Other Special Requirements, like tolerance, and surface treatment.
The requirements of tolerance and surface roughness should be clear Before CNC machining. Stricter tolerance requirements, more difficult machining, higher scrap rates, and consequently lead to higher costs.
Higher surface roughness requirements may result in CNC milling machines being unable to achieve them, necessitating the use of grinding machines or other methods, adding processes, and naturally increasing costs.
After CNC machining, CNC parts may require some post-processing, such as heat treatment and surface treatment, to enhance the functionality, performance, and aesthetics of the parts. These post-processing requirements can increase the cost of the parts to some extent.
Another important cost-driving factor for surface treatment is applying different surface treatment requirements to different areas of the parts.
For example, local electroplating, local anodizing, dual-color prototype oxidation, oxidation in one area but electroplating in another area. Therefore, to reduce costs, it is advisable to keep the surface treatment requirements consistent across the entire part unless necessary.