ANALISIS DAN EKSPERIMEN BLANK HOLDER GAP MINIMUM PADA PROSES RECTANGULAR CUP DEEP DRAWING
Abstract: This paper aims to
investigate the magnitude of minimum blank holder gap to prevent wrinkles and
cracks defects of the rectangular cup with T4 material Tin Plate CA. Punch-die
domensions are determined based on the standard tool designed. The methods of
this research are an analytic, finite element (FE), and experimental approach,
respectively. Each method in this study had been mutually compared to other
methods. According to the research, minimum blank holder gap is recommended by
120% to 130% of the thickness of the initial material (about 0.24 ÷ 0.26 mm).
By using the value of this gap, the height of wrinkles is very small, and the
magnitude of the drawing force is still below the critical limit, so the
product does not occur wrinkles and cracks.
Keywords: Blank Holder Gap,
Rectangular Cup Product, Deep Drawing, Wrinkling, Cracking, Punch-Die Set,
Drawing Force
Penulis: Susila Candra, I Made
Londen Batan, Wajan Berata, Agus Sigit Pramono
Kode Jurnal: jptindustridd160114
