Journal
CIRP ANNALS-MANUFACTURING TECHNOLOGY
Volume 60, Issue 1, Pages 331-334Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cirp.2011.03.141
Keywords
Micro forming; Micro punching; Stainless steel
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The outer shaving foils in electrical shavers are made from nickel through a galvanic deposition process, which are the subject of restrictions to eliminate allergic hypersensitivity to nickel. The substitution of this material through a stainless steel would require new manufacturing technologies to meet such parts' specifications. Narrow patterns of micro holes with raised edges smaller than phi 0.53 mm were punched into a 1.4310 sheet having a tensile strength of 1200 MPa. This paper summarizes the process development and presents the results gained through a feasibility study. Experimental investigations were carried out with special concern to the influence of punch and die geometry on process forces and finished part accuracy. (C) 2011 CIRP.
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