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我公司是大型工程机械企业，在公司产品的变矩器总成中有 一关键部件──泵轮总成，它主要由零件泵轮和轮毂组成。以前泵轮、轮毂是用铆钉铆合在一起、在铆接时，由于泵轮的硬度以及泵轮上孔加工位置度和轮毂上孔加工位置度的差异，在铆接时极易铆裂。为解决此问题，我们经过多
Our company is a large construction machinery company, in the company’s torque converter assembly has a key component ─ ─ pump assembly, which consists mainly of parts pump wheel and wheel components. In the past, the impeller and hub were stitched together with rivets. During riveting, the rivets were easily riveted during riveting due to the hardness of the impeller and the difference between the machining position on the impeller and the machining position on the hub. To solve this problem, we have more