Machining die for thin-wall aluminum alloy pipe

• Main Authors: ZHANG ZHIQIANG, HE KAIHONG
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2017
• Subjects: AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING

The invention provides a machining die for a thin-wall aluminum alloy pipe. The machining die is characterized by comprising an inner sleeve, an extrusion shaft, an extrusion needle and an extrusion needle support, the extrusion needle is arranged on the needle support, the extrusion shaft is of a hollow structure, and the outer side of the extrusion needle is sleeved with the extrusion shaft sleeve; and the inner diameter of the inner sleeve is equal to the inner diameter of the extrusion shaft, the diameter of the extrusion needle and the diameter of the needle support are the same, and the diameter of the extrusion needle and the diameter of the needle support are 2/5-3/5 of the inner diameter of the inner sleeve and the extrusion shaft. Through changing of the die proportion and changing of the extrusion coefficient, the phenomenon of sudden shutdown in the extrusion process can be effectively reduced, and the purpose of improving the production efficiency is further achieved. 本发明提供了种薄壁铝合金管材的加工模具，其特征在于：包括