What are the processing techniques of automobile tire molds?


Take the active mold as an example 1: Cast or forge the […]

Take the active mold as an example
1: Cast or forge the blank according to the tire mold diagram, then rough the blank and heat treatment. The tire mold blank is fully annealed to eliminate internal stress. It should be laid flat during annealing to avoid excessive deformation.
2: Drill the hoisting holes according to the drawing, and then process the outer diameter and height of the pattern ring according to the semi-finished turning drawing. Use the semi-finished turning program to turn the inner cavity of the pattern ring, and inspect the semi-finished turning model after turning.
3: Use the processed tire mold pattern electrode to shape the inner pattern of the pattern ring by EDM, and use the model to test.
4: Divide the pattern ring into several parts according to the manufacturer's requirements, draw the marking lines respectively, and put them in the tooling to punch the back waist hole and tap.
5: According to the equal parts divided in process 8, align the scribe line and cut.
6: The cut pattern blocks are polished, corners, roots, and vent holes are drilled according to the requirements of the drawings.
7: Sandblasting uniformly inside the pattern block cavity, requiring consistent colors.
8: Combine the pattern ring, mold sleeve, upper and lower side plates to complete the tire mold.