1. Because the extrusion temperature of the aluminum profile is too high, the tensile strength of the metal surface decreases, so under the action of friction, the aluminum profile worktable produces cracks.
2. Because the extrusion speed of the aluminum profile is too fast, the additional stress on the metal surface increases so that the aluminum profile worktable cracks.
3. Because of the friction force, the surface of the metal is affected by the additional stress, so when the additional stress is greater than the tensile strength of the surface metal, it will make the aluminum profile worktable crack.
The above three points can be the cause of crack of aluminum workbench, for aluminum workbench extrusion temperature, extrusion speed, the size of the surface stress is very important, when making aluminum workbench processing specific should pay attention to the above points, only good control of the several factors can produce high quality aluminum workbench products.
