COMPUTER MODELING AND RESEARCH OF THE ASYMMETRIC ROLLING OF A WORKPIECE WITH A GRADIENT DISTRIBUTION OF MECHANICAL PROPERTIES

2026

Full text Open access: Gold Metadata (CSL-JSON)
DOI 10.59957/jctm.v61.i3.2026.15
Data confidence 85 high
How this score is calculated

It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.

Abstract

The paper presents the results of finite-element modelling of asymmetric rolling of a workpiece with a gradient distribution of mechanical properties. To create a gradient distribution of properties, the workpiece was pre-loaded and Vickers microhardness was evaluated. The resulting workpiece model had a microhardness distribution that was close to the experimental values. The workpiece was subjected to both symmetric rolling and asymmetric rolling with an asymmetry coefficient of 1.5, which was achieved by varying the roll speeds (90 and 60 rpm) in two scenarios (90/60 and 60/90). The parameters of the stress-strain state and the rolling force were analyzed. The results showed that asymmetric rolling of a workpiece with a gradient distribution of mechanical properties had only minor differences from symmetric rolling. When the asymmetry coefficient exceeds 3, this factor begins to have a significant impacton the processing unevenness.