forged wheels refers to a process for manufacturing a rim for the forging technique embodiment, the use of such forging process for producing a forged wheel rim may be called.
1. Introduction noun forged wheels
forging a mechanical pressure is applied by forging a metal blank to produce plastic deformation in order to obtain a certain mechanical properties, shape and size of the forging must processing method, forging (forging and stamping) one of the two part composition. It can be eliminated by forging a metal such as cast loose during smelting produced defects, optimization of the microstructure, while due to the conservation complete metal flow lines, mechanical properties of the forgings generally better casting of the same material. Related high mechanical loads, the important parts of the severe working conditions, in addition to simple shape of the available rolled sheet, profiles or welded parts, the use of forgings.
.
2 process characteristics
The process characteristics forged wheels about the following;
1, using a cylindrical design, the diameter of the rim is greater by a thick aluminum to the forging material, and method for producing ring “raw material” more quite different cast aluminum;
2, cutting aluminum according to the desired number J aluminum ring width;
3, first ingots was heated to 400 ° C and down, ready to be prepared for forging; the lower the required
4, hot forging molding, forging press tonnage higher operating temperature ingot, the forged product grains smaller, higher toughness;
5, crude embryo autoclaving molding temperature is very high, the surface covered with black carbides, motivation to carry the fork must be pickled surface treatment. after the crude embryo has a prototype having a hub;
6, after time T4, and T6 heat treatment machine and then two kinds of heat processing, grain coarsening embryos will firmer product also toughness increases;
7, forged aluminum ring must rely on mechanical Work, the crude embryo to the rim forming process, thus forming the bead work includes screw holes drilled holes, turning the disk, and so detailed processing steps;
8, prior to coating, must be checked once Are rim surface imperfections.
forged wheels simply has the following advantages: 1. high strength, light weight 2, 3 relative to the cast. wheels save fuel.