弹性旁承体顶板的热挤压工艺设计

Hot Extrusion Technical Design of Elastic Side-bearing Coping

铁路货车转8B改造产品——JC-1型弹性旁承体顶板是典型的高筋薄壁件,本文在对其工艺分析的基础上,进行了工艺设计及模具设计。在对正反挤压工艺进行分析比较后,最终确定了反挤压成形工艺方案,并设计了相应的锻件图。经批量生产验证,设计的模锻工艺合理可行,能够保证产品技术要求。

Elastic side-bearing coping is the typical high-bar and thin-walled manufacture which reconstruct with lorry 8B. The technical design and die design have been introduced in the text by analysing the technique. The reverse extrusion technics has been finally determined by analyzing and comparing with its forward and reverse extrusion technics, with the corresponding forging drawing designed. The volume production proves that the die forging technique is reasonable and feasible,which can meet the technical demands of the product.