Process to manufacture teeth on a gear cog by cutting preform and sintering processes

摘要

In a process to manufacture gear wheels, material is placed in a press to as a pre-form and pressed. The pre-form is then cut to form teeth and sintered, followed by sinter-hardening and honed. The pre-sintering process takes place in a temperature range where no alloy is formed. The pre-sintering process is iterative. The sintered component core density is greater than 7.0 g/cm(3. The teeth are cut at a temperature of above 1280[deg]C either under a plasma or a high vacuum. Also claimed is a commensurate toothed gear wheel with a hardness of above 400 HV.