Aviation aluminum alloy die forging preparation method

• Main Authors: WANG QINGSONG, ZENG QINGHUA, QUE JIRONG
• Format: Patent
• Language: Chinese; English
• Published: 27.02.2018
• Subjects: CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; COMBINED OPERATIONS; FERROUS OR NON-FERROUS ALLOYS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; UNIVERSAL MACHINE TOOLS

The invention discloses an aviation aluminum alloy die forging preparation method. The aviation aluminum alloy die forging preparation method comprises the following steps: firstly, rolling an ingot,which meets the use requirements and has a first preset size, for preset passes to ensure that the ingot is rolled into a hot rolled plate with a second preset size; then, performing finish forging onthe hot rolled plate to ensure that the hot rolled plate is bent by a preset angle and becomes a forging; after that, quenching the forging; stretching the quenched forging to obtain a stretched part; and at last, performing aging treatment on the stretched part to obtain an aviation aluminum alloy die forging. As step-by-step segmental molding is performed on the large-scale die forging, the problem that equipment exceeds the limit is solved; as the hot rolled plate serves as a blank, the problem that the demand on the uniformity of the die forging cannot be met by free forging cogging is solved; and as the die forgi