Reasons& Solutions for Aluminum Profiles Wave, Twist and Bend

In the extrusion process of industrial aluminum profiles, profiles wave, twist, bending and other problems often happen, which are caused by the profile shape defects caused by uneven aluminum flow.

The main reasons for defects of aluminum profiles wave, twist and bend are as follows :
1. The unreasonable design of aluminum extrusion die working belt leads to uneven metal flow;
2. Extrusion speed is too fast or extrusion temperature is too high, resulting in uneven metal flow; 3. Dies cavities layout is not reasonable, resulting in uneven metal flow;
4. Guide is not suitable or not installed guide;
5. Lubrication is not suitable.
Aluminum profiles defects such as wave, twist twist, bend solution:
1. Correct the extrusion die working belt, make the metal flow uniformly;
2. Adopting reasonable extrusion process, on the premise of guarantee the outlet temperature by low temperature extrusion;
3. Reasonable design of aluminum extrusion die structure;
4. Configure the appropriate guide way;
5. Reasonable lubrication;
6. Use puller machine in extrusion processing.