Patent ID: 6955209
Filing Date: 2005-10-18
Classification: B22D,C21D,C23C

Abstract:
1. A method for implementing post-heat treatment after spray forming is ended to achieve stress control in the manufacture of a spray-formed metallic tool, comprising: providing a spray-formed metallic tool formed by application of a spray-forming material at a preselected application temperature upon a mold substrate having a pre-selected post-forming mold substrate temperature disposed within a spray-forming cell environment having a pre-selected post-forming spray forming cell environment temperature; causing preselected substantially homogenous metallic phase transformations of the spray forming material within the spray-formed metallic tool to a substantially homogenous distribution of commingled metallic phases consisting of predetermined proportions of at least a bainite phase and a martensite phase of the spray forming material; and wherein the substantially homogenous metallic phase transformations are caused at least in part via manipulation of at least one of the post-forming substrate temperature and the post-forming spray forming cell environment temperature.