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How to reduce deep processing deformation of aluminum profile?

Update time : 2022-12-30 18:41:24

Aluminum profile workpiece in the process of deep processing may appear a variety of deformation, in addition to the material, equipment, tool problems, processing operation method is also very important. Today, let's introduce the operation skills of aluminum profile deep processing.

1. Pay attention to the cutting sequence:

Roughing focuses on processing efficiency and has cut as much aluminum material as possible in as little time as possible. So rough machining is generally used in inverse milling. And the finishing pay attention to high precision, it is appropriate to use down milling.

2. Notes for the clamping of thin-walled aluminum profiles:

Thin wall aluminum profile itself is very easy to deformation, in the deep processing should pay special attention to, clamping should not be too tight or too loose. When the machining is almost complete, loosen the fixture slightly to allow the workpiece to recover its shape, and then press gently. It really tests the skill of the workers.

3. Appropriate selection of symmetrical processing:

For the parts with large processing allowance, in order to better processing heat dissipation, symmetrical processing can be selected.

4. The workpiece with many cavities can be processed multiple times in layers:

For the processing of multiple cavities if in order, a processing will lead to uneven stress and deformation of the workpiece. Each layer is processed to each cavity using multiple layers. The processing deformation can be greatly reduced.

5. Change cutting parameters to reduce cutting force and cutting heat:

If the machining allowance is too large, the cutting force of a cutting tool will not only deform the aluminum profile, but also reduce the rigidity of the equipment spindle and the life of the tool. However, in CNC machining are high speed milling, can overcome this problem. In reducing the amount of back cutting tool at the same time, as long as the feed increases correspondingly, improve the speed of the machine tool, you can reduce the cutting force, while ensuring the processing efficiency.

6. Pay attention to the chip space of the milling cutter when processing aluminum profiles with cavity:

If the milling cutter is directly tied down, it may lead to insufficient chip space and cause overheating, expansion, knife collapse, broken knife and other phenomena of aluminum profile parts. Drill it with a bit of the same size or one size larger than the milling cutter, and then cut it with the milling cutter.

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