Wear of D2 Tool Steel Dies during Trimming DP980-type Advanced High Strength Steel (AHSS) for Automotive Parts University of Windsor

Format:

Conference/Event

Author/Creator:

Bhattacharya, Bhattacharya, author.

Contributor:

Alpas, Ahmet

Green, Daniel

Sohmshetty, Raj

Conference Name:

WCX 17: SAE World Congress Experience (2017-04-04 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2017

Summary:

AbstractAutomobile body panels made from advanced high strength steel (AHSS) provide high strength-to-mass ratio and thus AHSS are important for automotive light-weighting strategy. However, in order to increase their use, the significant wear damage that AHSS sheets cause to the trim dies should be reduced. The wear of dies has undesirable consequences including deterioration of trimmed parts' edges. In this research, die wear measurement techniques that consisted of white-light optical interferometry methods supported by large depth-of-field optical microscopy were developed. 1.4 mm-thick DP980-type AHSS sheets were trimmed using dies made from AISI D2 steel. A clearance of 10% of the thickness of the sheets was maintained between the upper and lower dies. The wear of the upper and lower dies was evaluated and material abrasion and chipping were identified as the main damage features at the trim edges. This paper quantifies the wear on the upper and lower dies between 20,000 - 230,000 trimming cycles and notes the observed differences between the wear characteristics in the upper and lower dies

Notes:

Vendor supplied data

Publisher Number:

2017-01-1706

Access Restriction:

Restricted for use by site license