اصلاح توانایی کشش عمیق با استفاده از پانچ با سطوح دندانه دار میکروسکوپی

  Improvement of deep drawability by using punch surfaces withmicroridges     Because of product miniaturization, demand for cups created by deep drawing has increased. However,because thin sheet materials exhibit poor deep drawing formability, using deep drawing on micro/mesocups is rather difficult. In this study, punch surfaces with microridges were used to enhance deep drawingformability. The concept was based on the observation that punch surfaces with microridges near thepunc ...