Rolling and forging combined production method for gearbox intermediate gear shaft blank and forging and pressing die

• Main Authors: REN QIHUA, WEI GUANGYUAN, WEI GUANGLU, WANG HUIBO
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2022
• Subjects: FORGE FURNACES; FORGING; HAMMERING; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PRESSING METAL; PUNCHING METAL; RIVETING; TRANSPORTING

The invention discloses a rolling and forging combined production method for a gearbox intermediate gear shaft blank and a forging and pressing die. The rolling and forging combined production method is characterized by comprising the following steps that a bar with the diameter being 80 mm is selected; medium-frequency heating; rolling into a gearbox intermediate gear shaft rolled blank through a cross wedge rolling mill; forging and pressing into a gearbox intermediate gear shaft blank through a press machine; the gearbox intermediate gear shaft blank with the large-diameter disc is produced by adopting the small-diameter bar, so that the large disc of the gearbox intermediate gear shaft blank can be subjected to stress deformation, internal looseness is prevented, the product quality is ensured, the cost of production raw materials is reduced, and the economic benefit is improved. 本发明公开了变速箱中间齿轮轴毛坯的轧锻结合生产方法及锻压模具，其特征在于：它由以下步骤制作完成：选取直径80mm的棒料；中频加热；通过楔横轧机轧制成变速箱中间齿轮轴轧制毛坯；通过压力机锻压成变速箱中间齿轮轴毛坯。本发明采用小直径棒料生产具有一个大直径圆盘