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Particularities of Grinding High Speed Steel Punching Tools
KTH, School of Industrial Engineering and Management (ITM), Production Engineering, Machine and Process Technology.
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2011 (English)In: Advances In Abrasive Technology XIV, Trans Tech Publications Inc., 2011, Vol. 325, 177-182 p.Conference paper (Refereed)
Abstract [en]

A simulation model of a punch grinding process has been used to determine optimal parameters to reduce grinding cycle time and achieve a constant-temperature no-burn situation.Two basic outputs of the simulation model include arc length of contact and specific materialremoval rate that are both time-variant. A thermal model is included in the simulation to calculatemaximum grinding temperature rise. The simulation-based optimization can help to avoid thermal damage, which includes thermal softening, residual tensile stress, and rehardening burn. The grindability of high speed steel (HSS) is presented in terms of specific grinding energy versus undeformed chip thickness and maximum temperature rise versus specific material removal rate. Itis shown that for a given specific material removal rate lower temperatures are achieved when grinding fast and shallow. Higher temperatures, characteristic for slow and deep grinding, soften the material leading to a lower specific grinding energy, especially if grinding is timid. Lowest valuesof specific grinding energy can be achieved in fast and shallow grinding at aggressive grinding conditions.

Place, publisher, year, edition, pages
Trans Tech Publications Inc., 2011. Vol. 325, 177-182 p.
, Advanced Materials Research, ISSN 1022-6680 ; 325
Keyword [en]
Grinding, High Speed Steel, Simulation, Thermal Damage
National Category
Other Materials Engineering
Research subject
SRA - Production
URN: urn:nbn:se:kth:diva-39488DOI: 10.4028/ 000309697300028ScopusID: 2-s2.0-80052991191ISBN: 978-3-03785-231-6OAI: diva2:439924
14th International Symposium on Advances in Abrasive Technology, ISAAT 2011; Stuttgart; Germany; 18 September 2011 through 21 September 2011
XPRES - Initiative for excellence in production research

QC 20110912

Available from: 2011-09-09 Created: 2011-09-09 Last updated: 2014-08-25Bibliographically approved

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Krajnik, PeterNicolescu, Mihai
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