![click to zoom](../img/cp0101.jpg) Mould [click to zoom]
We can produce and supply all kinds of natural diamond dies and special dies:
TYPICAL REDUCTION ANGLES AND BEARING LENGTH
Area Reduction Per Draft |
Lead Zinic Silver Gold |
Aluminum Nickel Copper |
Brass bronze Stainless steel |
High Carbon Steel |
Hot Tungsten |
8-12% |
16º |
12º |
11º |
10º |
10º |
12-16% |
18º |
14º |
13º |
12º |
12º |
16-15% |
22º |
18º |
16º |
15º |
12º |
25-35% |
24º |
22º |
19º |
18º |
14º |
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 |
>0.0780 |
0.00042 |
0.0002 |
MILLIMETERS |
SIZE RANGE |
STANDARD TOLERANCE |
ROUNDNESS |
-0.020- |
0.007 |
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 |
1.106-1.524- |
0.0050 |
0.0025 |
1.524-1.981- |
0.007 |
0.0035 |
>1.981 |
0.010 |
0.005 |
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