Machining method of variable cross-section frame longitudinal beam, variable cross-section frame longitudinal beam and vehicle

• Main Authors: CHEN LIANJING, YUAN ZONGMING, XIAO GUANGLIN, ZHU DAHUA, GAO XINGLAN, GE JUN
• Format: Patent
• Language: Chinese; English
• Published: 05.02.2021
• Subjects: LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING

The invention relates to a machining method of a variable cross-section frame longitudinal beam, the variable cross-section frame longitudinal beam and a vehicle, relates to the technical field of automobile machining, can finish machining of the variable cross-section frame longitudinal beam by using a universal bending machine or a roller press, and can manufacture the variable cross-section frame longitudinal beam without a special large hydraulic machine and a longitudinal beam mold. A left longitudinal beam mold and the right longitudinal beam mold do not need to be replaced respectivelyduring stamping forming of the frame longitudinal beam, the process is simpler, the production efficiency is effectively improved, and the production cost can be effectively reduced; longitudinal beamhole sites are machined through numerical control punching equipment, a variable cross-section longitudinal beam body and a variable cross-section longitudinal beam airfoil with different lengths andinflection points are prep