Equal-diameter spiral track-driven sheet metal discontinuous contact incremental forming method and product

• Main Authors: WANG JIN, WANG XU, SUN SHUFENG, JIANG HUSEN, GU NING, LI LIHUA, JIN YETANG, WANG XINTAI
• Format: Patent
• Language: Chinese; English
• Published: 02.10.2018
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The invention discloses an equal-diameter spiral trace-driven sheet metal discontinuous contact incremental forming method and a product. In the forming method, because the forming trace of a formingtool is spiral, acting force being upward along the spiral trace tangent line is exerted on sheet metal, plastic flow of sheet metal in an unprocessed area to a processed part is increased, and thus partial thinning of sheet metal in a processed area is reduced, the forming performance of the sheet metal can be exerted to a greater extent, and the product with a steeper sidewall is formed. 本发明公开了等径螺旋轨迹驱动的板料非连续接触渐进成形方法及制品，成形方法中由于成形工具的成形轨迹为螺旋形，对板料产生了沿螺旋轨迹切线向上的作用力，增加了未加工区域板料向加工局部的塑性流动，从而减少了加工区板料的局部变薄，因而可更大程度的发挥板料的成形性能，成形具有更陡峭侧壁的产品。