Natural diamond dies
  Polycrystalline diamond dies
  Extrusion tips and dies
  Enamelling dies
  Tungsten carbide dies
  Threading dies
  Diamond jet nozzles
 

  Typical Reduction Angle and Bearing Length



% of Area
Reduction
Per Draft

Lead
Zinc
Silver
Gold


Aluminum
Nickel
Copper

Brass Bronze
Stainless Steel


High Carbon Steel


Hot Tungsten

8-12£¥

16

12

11

10

10

12-16£¥

18

14

13

12

12

16-25£¥

22

18

16

15

12

25-35£¥

24

22

19

18

14

Bearing Length

0.2-0.5d

0.4-0.8d


           


  Specification and Tolerance of Standard Diamond Dies

Inches

Size Range

Standard Tolerance

Roundness

      -0.0008¡¥

0.000028

0.000014

0.0008-0.0020¡¥

0.000039

0.00002

0.0020-0.0040¡¥

0.000039

0.00002

0.0040-0.0080¡¥

0.000059

0.00003

0.0080-0.0200¡¥

0.00008

0.00004

0.0200-0.0400¡¥

0.00012

0.00006

0.0400-0.0600¡¥

0.0002

0.0001

0.0600-0.0780¡¥

0.00028

0.00014

£¾0.0780

0.0004

0.0002

Millimeters

Size Range

Standard Tolerance

Roundness

      -0.020¡¥

0.0007

0.00035

0.020-0.051¡¥

0.0010

0.0005

0.051-0.102¡¥

0.0010

0.0005

0.102-0.203¡¥

0.0015

0.00075

0.203-0.508¡¥

0.0020

0.0010

0.508-1.016¡¥

0.003

0.0015

1.016-1.524¡¥

0.0050

0.0025

1.524-1.981¡¥

0.007

0.0035

£¾1.981

0.010

0.005

 

 

Link:
copyright ¡òZhejiang Jinping Wire Drawing Die Co.,Ltd
Design By:Hangzhou Creative Technology Ltd