METHOD FOR PRODUCING A MOTOR VEHICLE COMPONENT FROM A HARDENABLE ALUMINUM ALLOY

• Main Authors: HIELSCHER CHRISTIAN, BOHNER FRIEDRICH, DOERR JOCHEN, TOELLE JOERN, GREWE JO, RAUSCHER BORIS
• Format: Patent
• Language: English
• Published: 25.02.2016
• Subjects: ALLOYS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; METALLURGY; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

A method for producing a motor vehicle component includes the steps of providing a precipitation-hardenable blank composed of a 6000 or 7000 grade aluminum alloy, solution-annealing the blank at a temperature between 350° C. and 550° C. for a time period of 2 to 30 min., in particular 3 to 20 min. and preferably 5 to 15 min., in particular at a temperature between 440° C. and 480° C. in the case of a 7000 grade aluminum alloy, and in particular at a temperature between 490° C. and 545° C. in the case of a 6000 grade aluminum alloy, subjecting the solution-annealed blank to partially different quenching, a first region being quenched to a temperature between 150° C. and 250° C., and a further region being quenched to a temperature below 150° C., deforming the blank during or after the partially different quenching.