【摘要】：小型薄壁套管類(lèi)零件,整體尺寸較小且內(nèi)外結(jié)構(gòu)復(fù)雜,加工方法的選擇和成形工藝設(shè)計(jì)方面是生產(chǎn)該類(lèi)零件的重點(diǎn)和難點(diǎn)。針對(duì)上述難點(diǎn),采用適合中小型零件批量加工的多工位冷成形加工方法,并根據(jù)成形理論分析,初步設(shè)計(jì)出兩種較合理的六工位冷成形方案,對(duì)成形過(guò)程采用Deform-3D軟件數(shù)值模擬。得出先反擠壓成形薄壁端的最大載荷為5.6×104N,遠(yuǎn)小于先鐓粗成形凸緣的最大載荷;臺(tái)階深孔的成形采用杯-杯復(fù)合擠壓,其損傷值遠(yuǎn)小于材料的臨界損傷值。最終通過(guò)生產(chǎn)試驗(yàn)驗(yàn)證模擬結(jié)果的最佳工藝,且成形后小型薄壁套管的內(nèi)部組織分布合理,無(wú)冷鐓缺陷。
[Abstract]:Small thin-walled casing parts have small overall size and complex internal and external structures. The selection of machining methods and forming process design are the key and difficult points in the production of these parts. In view of the difficulties mentioned above, the multi-station cold forming method suitable for batch machining of small and medium-sized parts is adopted, and according to the analysis of forming theory, two reasonable six-station cold forming schemes are preliminarily designed. The forming process is simulated by Deform-3D software. It is concluded that the maximum load of thin-wall end is 5.6 脳 104N, which is much less than the maximum load of pre-upsetting flange, and the damage value of step deep hole is much smaller than the critical damage value of material when cup-cup compound extrusion is used in the forming of deep hole. Finally, the optimum process of simulation results is verified by production test, and the internal structure distribution of small thin-walled casing after forming is reasonable, and there is no cold upsetting defect.
【作者單位】： 鄭州輕工業(yè)學(xué)院機(jī)電工程學(xué)院;中石化中原石油工程有限公司鉆井三公司;鄭州機(jī)械研究所;
【基金】：“高檔數(shù)控機(jī)床與基礎(chǔ)制造裝備”國(guó)家重大科技專(zhuān)項(xiàng)(2013ZX04002081) 鄭州輕工業(yè)學(xué)院博士基金資助項(xiàng)目(2015BSJJ090)
【分類(lèi)號(hào)】：TG306

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