Ways to save money on your Aluminum CNC Machining Parts?
While you’re searching for the next company to take on your aluminum cnc machining parts, you’re looking for ways to save money. Whether it’s a small project like a part replacement or custom handrails for a large apartment complex, minimizing costs on your job site is a priority.
Worthy Hardware completely understands how important low-cost solutions are, so here’s a few ways we can help your next project come in under budget.
Tip #1 - Specify Tolerances only when Necessary
Defining tight tolerances raises the cost of CNC, as it both increases the machining time and requires manual inspection. Tolerances should be defined sparingly and only when necessary.
If a specific tolerance is not defined on the technical drawing, then the parts will be machined using the standard tolerance (± 0.125 mm or better), which is sufficient for most non-critical features.
Tight tolerances are especially difficult to achieve on internal features. For example, while machining intersecting holes or cavities, small defects may develop at the edges (called the burr), due to the deformation of the material. Parts with such features require inspection and deburring, which are both manual (and time inefficient) processes, increasing the cost.
Tip #2 - Design Holes with Standard Size
Holes can be CNC machined fast and to a great accuracy using standard drill bits. For non-standard sizes, the hole must be machined using an end mill tool, potentially increasing the cost.
Also, limit the depth of all holes to 4 times their diameter. Deeper holes (up to 10 times the diameter) can be manufactured, but they will likely increase the cost, as they are problematic to machine.
Tip #3 - Limit the Length of Threads
Specifying threads that are longer than necessary can increase the cost of CNC parts, as special tooling may be required.
Keep in mind that threads longer than 0.5 times the diameter of the hole do not actually add to the strength of the connection.
Tip #4- Avoid (Multiple) Surface Finishes
Surface finishes improve the appearance and resistance to harsh environments of CNC machined parts, but also increase their cost.
Requesting multiple different surfaces finishes on the same part increases the price even further, as extra steps are required (for example, to mask the surfaces).
Worthy Hardware is a CNC manufacturing and sheet metal fabrication company,including CNC machining services,CNC milling services, CNC turning services, laser cutting services and stamping services.Call us +86-76989919645 or email us [email protected] for more discounts for your projects.