How to choose die
casting machine tonnage?
In initial stage of quoting a die casting product and when we design die casting
molds, all refers to consideration of die casting machine tonnage, the
following three steps must be applied:
,Verify clamping force
a. Total projected area A=Die casting projected area A1+Runner
area A2(0.15~0.3A1)+ Overflow system A3(0.1~0.2A1)+ Material handle area A4(3.14xdxd d is material room diameter, also
as punching head diameter)
b. Swelling Force F1=Total projected area Ax Injection pressure (MPa) Injection pressure is the
pressure force per area, according to experience: Conventional die casting product
is 30~50, bearing die casting product is 50~80 Air resistance die casting
product 80~100.
c. Clamping Force F2=Swelling Force F1/K K is Safety Index:0.85
, Verify filling
a. Total we
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