Effect of Process Parameters on Surface Roughness in Hammer Peening and Deep Rolling
Effect of Process Parameters on Surface Roughness in Hammer Peening and Deep Rolling
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锤击深滚工艺参数对表面粗糙度的影响
DOI：
10.4028/www.scientific.net/kem.554-557.1887
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
P. Groche
中科院分区：
文献类型：
--
作者：
M. Steitz;J. Scheil;C. Müller;P. Groche
模具制造行业提高生产率和降低成本的挑战可以通过扩大工艺链的自动化来解决。通常，最终的表面质量是通过手动抛光操作产生的。通过使用机锤喷丸 (MHP) 和深滚压 (DR) 可以显着减少这一昂贵且耗时的生产步骤。对于这两种工艺，每个工艺参数对最终表面形貌的影响很大程度上是未知的。需要弥合有关重要参数和非重要参数的知识差距，以便快速优化流程并更经济地使用这两种方法。因此，本研究的重点是找出每个工艺参数对铸铁和工具钢可实现的表面光滑度的统计影响。基于部分因子测试设计，给出了实验参数研究的结果并确定了重要参数。使用高速摄像机，还可以证明为什么锤击方向和表面法线之间的倾斜角对于最终的表面质量是有利的。最后，对结果进行了讨论，并给出了 MHP 和 DR 的工业应用建议。
The challenges in die and mold making industry to increase productivity and reduce costs can be addressed by expanding the automation in the process chain. Conventionally the final surface quality is produced by manual polishing operations. This expensive time-consuming production step can be reduced significantly by using machine hammer peening (MHP) and deep rolling (DR). For both processes the emphasis of each process parameter on the resulting surface topographyis largely unknown. This gap of knowledge about significant and non-significant parameters needs to be closed in order to allow a fast process optimization and more economic use of both methods. Therefore this study focuses on figuring out the statistically secured effect of each process parameter on the attainable surface smoothing on cast iron and tool steel. Based on a fractional factorial test design the results of an experimental parameter study are presented and significant parameters are identified. Using a high-speed camera, it may also be proved why an inclination angle between the hammering direction and surface normal is advantageous with regard to the resulting surface quality. Finally, the results are discussed and advices for an industrial use of MHP and DR are given.