Mechanical properties depend on both extrusion conditions and proper cooling.

MTD is your partner for successful extrusion of difficult alloys, optimize the weld chambers and process conditions, and to help you with problems related to metallurgy and microstructure improvements.

Weld seam quality is a key factor. If the welding criteria along the flow paths in the weld chamber are not satisfied, weld seam defects may appear in the profile. Welding criteria are expressed in terms of pressure, temperature and flow within the weld chamber. The MTD 3D flow solver permits to predict those quantities in terms of die geometry and process parameters. 

In the example below, the flow through the large press die below was simulated for different die conceptions, until satisfaction of the weld criterion, thus leading to satisfactory profile quality.