Reduction of friction in compression of plates by load pulsation
Reduction of friction in compression of plates by load pulsation
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DOI：
10.1016/j.ijmachtools.2011.03.007
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发表时间：
2011-07-01
影响因子：
14
通讯作者：
Mori, K.
中科院分区：
文献类型：
--
作者：
Maeno, T.;Osakada, K.;Mori, K.
为了防止在板的压缩中载荷的急剧上升，开发了使用载荷脉动的压缩过程。在此过程中，压缩载荷在成形过程中部分释放，以重新润滑板的表面。在每次卸载释放时，由于模具和板之间的弹性恢复差异，在板的外表面上产生间隙，并且液体润滑剂自动地供给到间隙中。在铝合金板的压缩试验中，考察了载荷释放率和释放次数对压缩载荷降低的影响。载荷脉动使压缩载荷显著降低，压缩板的厚度减小。通过在压缩实验中腐蚀板的表面来验证在部分释放载荷时间隙的发生。已经发现，具有自动再润滑功能的载荷脉动在防止板压缩中载荷的增加方面是有效的。(C)2011爱思唯尔有限公司保留所有权利。
To prevent a sharp rise in load in compression of plates, a compression process using load pulsation was developed. In this process, the compression load is partially released during the forming to re-lubricate the surfaces of the plate. Gaps on the outer surfaces of the plate were caused in each release of unload by the difference in elastic recovery between the die and the plate, and the liquid lubricant is automatically fed into the gap. In the compression of an aluminium alloy plate, the effects of the releasing ratio of the load and the number of release on the reduction in compressive load were examined. Compressive load was considerably reduced by the load pulsation, and the thickness of the compressed plate was decreased. The occurrence of the gaps in the partial release of load was verified by corroding the surfaces of the plate in a compression experiment. It was found that the load pulsation having the automatic re-lubrication function is effective in preventing the increase in the load in the compression of plates. (C) 2011 Elsevier Ltd. All rights reserved.