介绍带台阶并在圆柱体上有三棱面的粉末冶金村套的材料配方、压制方法和模具结构。
Material compoSition, compacting method and die structure of P/M bush with step and prismatic surface on cylinder were outlined.
针对模具制造中遇到的微小异形凸模难加工问题，介绍了采用冷压成形工艺——立体压制方法。
The principle, structure and key design points of three-point fixing method to special-shaped small punch are introduced, and compared with traditional fixing methods.
经理论模型及实际资料验证，地震异常振幅自适应压制方法实用性强，对异常振幅处理效果明显。
Through theoretical model and real data attestation, this method has a good feasibility and obvious effect in abnormal amplitude processing.
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