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How To Choose Drawing Dies
Item Soft wire product Hard wire product
Bell angle (α) 70°±20° 60°±20°
Approach angle (β) 35°±5° 30°±5°
Reduction angle (γ) 18°±2° 12°±2°
Bearing length (D) 20-50 40-60
Back relief angle(θ) 20-50 15°±5°
Exit angle (φ) 50°±20° 50°±20°
Standard configuration for other wire types also available
Wire type/Die range mm 0.010 0.025 0.05 0.10 0.20 0.40 0.80 1.60 3.20 6.40 12.80 22
Stainless steel ND ND ND ND ND ND ND
Stainless steel PCD PCD PCD PCD PCD PCD PCD PCD
Tungsten/Molybdenum ND ND ND ND ND ND
Tungsten/Molybdenum PCD PCD PCD PCD PCD PCD PCD PCD
Bare copper ND ND ND ND ND ND ND
Bare copper PCD PCD PCD PCD PCD PCD PCD
Aluminlum ND ND ND ND
Aluminlum PCD PCD PCD PCD PCD PCD PCD
Brass covered steel ND ND
Brass covered steel PCD PCD PCD PCD
Copper coated steel ND
Copper coated steel PCD PCD PCD PCD
Tinned copper ND ND ND ND ND
Tinned copper PCD PCD PCD PCD
Gold/Platinum ND ND ND ND ND ND ND
Gold/Platinum PCD PCD PCD PCD PCD
Bunch wire ND ND ND
Bunch wire PCD PCD PCD PCD PCD PCD PCD
Hard Wire Product
Stainless steel wire, copper plated steel wire, galvanized steel wire, brass plated steel wire tungsten wire ,. etc
Soft Wire Product
Copper wire, aluminum wire, brass wire gold wire ,. etc