EXPERIMENTAL DETERMINATION OF THE DRAW BEAD COEFFICIENT OF FRICTION OF CuZn SHEETS IN SHEET METAL FORMING PROCESSES
نویسندگان
چکیده
In sheet metal forming, draw beads are used to limit the flow of in specific areas stamping die. The value coefficient friction at bead determines achievement desired resistance displacement. This article presents results experimental tests for determining on a using specially developed tribotester. test material consisted CuZn37, CuZn30 and CuZn10 brass sheets various states hardening. Investigations were carried out with different roughness countersamples sliding speeds. addition, under conditions dry lubrication surface LAN-46 machine oil. relationships between process parameters analysed analysis variance. It was found that decreases increasing mean countersamples. Lubrication reduced by about 6.2-29.8% depending grade tested speed.
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ژورنال
عنوان ژورنال: Acta Metallurgica Slovaca
سال: 2023
ISSN: ['1338-1156', '1335-1532']
DOI: https://doi.org/10.36547/ams.29.3.1780