Extrusion die and extrusion process of aluminum alloy structure piece for light car

• Main Authors: WANG XU, GUO ZHANCHANG, LI YANG, HE YUFANG
• Format: Patent
• Language: Chinese; English
• Published: 22.09.2017
• 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 relates to an extrusion die and an extrusion process of an aluminum alloy structure piece for a light car. The extrusion die comprises an upper die and a middle die matched with the upper die, a feeding groove is formed in the surface of the upper die and is internally provided with a flow dividing hole, the upper die comprises a split upper die and two round tongue cores, and the split upper die and the round tongue cores are detachably connected, the extrusion die is subject to flow dividing combination, flow is evenly distributed to all flow dividing hole structures, the metal flowing speed and flow are even, die stress is reduced, the mechanical property and the appearance form and position tolerance requirement of products are guaranteed, defects of poor mechanical property, poor plane and angle out-of-tolerance and the like are avoided, the overall strength of the die is improved through the structure, and elastic deformation of the die is reduced; and meanwhile, feeding of all parts of pr