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Particularities of grinding high speed steel punching tools
Krajnik, Peter (Author), Dražumerič, Radovan (Author), Badger, Jeffrey A. (Author), Kopač, Janez (Author), Nicolescu, Cornel Mihai (Author)

URLURL - Presentation file, Visit http://www.scientific.net/AMR.325.177 This link opens in a new window

Abstract
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 material removal rate that are both time-variant. A thermal model is included in the simulation to calculate maximum 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. It is 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 values of specific grinding energy can be achieved in fast and shallow grinding at aggressive grinding conditions.

Language:English
Keywords:brušenje, hitrorezna jekla, simulacija, toplotne poškodbe, grinding, high speed steel, simulation, thermal damage
Work type:Not categorized (r6)
Tipology:1.08 - Published Scientific Conference Contribution
Organization:FS - Faculty of Mechanical Engineering
Year:2011
Number of pages:Str. 177-182
UDC:621.92
ISSN on article:1662-8985
DOI:10.4028/www.scientific.net/AMR.325.177 Link is opened in a new window
COBISS.SI-ID:11961883 Link is opened in a new window
Views:572
Downloads:286
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Record is a part of a proceedings

Title:Advances in Abrasive Technology
COBISS.SI-ID:11961627 This link opens in a new window

Record is a part of a journal

Title:Advanced materials research
Shortened title:Adv. mat. res.
Publisher:Trans Tech Publications
ISSN:1662-8985
COBISS.SI-ID:11257371 This link opens in a new window

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