冲压成形的特点与板材冲压成形性能

中文字数:7076,中文页数:9 英文字数:3894页数:11

 冲压是通过模具使板材产生塑性变形而获得成品零件的一种成形工艺方法，由于冲压通常在冷态下进行，因此也称冷冲压。只有当板材厚度超过8～100mm时，才采用热冲压，冲压加工的原材料一般为板材或带材，故也称板材冲压。某些非金属板材（如胶木板，云母片，石棉，皮革等）亦可采用冲压成形工艺进行加工。冲压广泛应用于金属制品各行业中，尤其在汽车，仪表，军工，家用电器等工业中占有及其重要的地位，冲压成形需研究工艺，设备和模具三类基本问题。冲压模具制造成本高，因此适合于大批量生产。对于小批量，多品种生产，常采用简易冲模，同时引进冲压加工中心等新型设备，以满足市场求新求变的需求。

 Stamping is a kind of plastic forming process in which a part is produced by means of the plastic forming of the material under the action of a die.Stamping is usually carried out under cold state,so it is also called cold stamping.Heat stamping is used only when the blank thickness is greater than 8-100mm.The blank material for stamping is usually in the form of sheet or strip,and therefore it is also called sheet metal forming.Some non-metal sheets(such as plywood,mica sheet,asbestos,leather) can also be formed by stamping.Stamping is widely used in various fields of the metalworking industry,and it plays a crucial role in the industries for manufacturing automobiles,instruments,military parts and household electrical appliances,etc.The process,equipment and die are the three foundational problems that needed to be studied in stamping. The manufacture of the stamping die is costly,and therefore it only fits to mass production.For the manufacture of products in small batch and rich variety,the simple stamping die and the new equipment such as a stamping machining center, are usually adopted to meet the market demands.

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