A-53, G. T. KARNAL ROAD, AZADPUR, DELHI - 110033 (INDIA)

PCD Dies Details

Important Guidelines for Wire Die end Users

  • Follow maximum recommended bore diameter for soft Non-ferrous wire. Hard ferrous wire should not exceed 65 % of this diameter.
  • Recut or repolish die on observation of wear ring in area of wire contact to maximize die life.
  • Filter lubricant to remove metal fine to maximize lubricant flow, wire finish and die life.
  • Decrease bearing length for higher speed drawing.
  • Use finer grain die blanks for improved wire surface finish and in drawing ferrous and plated wires.
  • Use coarser grain die blanks for drawing larger size non-ferrous wire to provide longer die life and improved wire dimensional control.
  • In high temperature drawing of tungsten & molybdenum wire maintain reducing atmosphere in drawing zone to minimize detrimental oxidation effect and maximized die life
  • Use matched elongation die sets in multiwiredrawing machines.

 

AJEX & TURNER WIRE TECHNOLOGIES PCD STANDARD SPECIFICATIONS

BLANK SIZE CASING SIZE (mm) D X T
D-6 thru D-12 25 x 10 or 28 x 10
D-15 thru D-24 25 x 10 or 28 x 12
D-27 thru D-30 43 x 27
D-33 53 x 34
53 x 34 70 x 40

*Special casing sizes available upon request.

TYPICAL DIE SPECIFICATIONS FOR VARIOUS WIRE MATERIALS

WIRE MATERIAL DEGREE OF BLENDING SINGLE CRYSTAL DIAMOND POLYCRSTALLINE DIAMOND
REDUCTION ANGLE BEARING LENGTH REDUCTION ANGLE BEARING LENGTH
Bare Copper Well Blended 18° ± 2° 40% ± 10% 18° ± 2° 25% ± 10%
Aluminium Well Blended 20° ± 2° 25% ± 10% 20° ± 2° 25% ± 10%
Tin or Silver-Plated Copper Very Well Blended 20° ± 2° 20% ± 10% 20° ± 2° 20% ± 10%
Stainless Steel Slightly Blended 14° ± 2° 50% ± 10% 15° ± 2° 35% ± 10%
Tungsten Slightly Blended 14° ± 2° 50% ± 10% 14° ± 2° 30% ± 10%
Brass or Copper-Covered Steel Slightly Blended 10° ± 2° 35% ± 10% 10° ± 2° 30% ± 10%
Size Range in mm Standard Hole Size Tolerance in Microns Standard Ovality Tolerance in Microns
0.0751-0.100 0.0012 0.0008
0.101-0.200 0.0015 0.0010
0.201-0.250 0.0020 0.0010
0.251-0.400 0.0020 0.0010
0.401-0.500 0.0030 0.0020
0.501-0.750 0.0030 0.0020
0.751-1.000 0.0040 0.0025
1.001-1.500 0.0040 0.0025
1.501-3.80 0.0050 0.0030
3.801-12.70 0.0127 0.0127

PCD QC REQUIRED PARAMETERS ALL DIES SPECIFICATION

COPPER (REQUIRED DC PARAMETERS) -PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
0.080-1.000 14*-16* +0.002/-0.000 20%-25% ± 5%
1.001-2000 16*-18* +0.003/-0.000 20%-25% ± 5%
2.001-4.000 16*-18* +0.005/-0.000 20%-25% ± 5%
4.001-8.000 18*-20* +0.010/-0.000 20%-25% ± 5%

COPPER (REQUIRED QC PARAMETERS) -NATURAL DIAMOND

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
0.050-0.500 14*-16* +0.001/-0.000 20%-25% ± 5%

TIN PLATED COPPER (REQUIRED QC PARAMETERS) -PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
For All Sizes 16*-18* +0.002/-0.000 20%-25% ± 5%

MULTI WIRE (AS PER NIHEOFF DIE SERIES)

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
0.050-0.500 14*-16* +0.001/-0.000 40%-45% ± 5% (N.D)
0.501-1.600 14*-16* +0.002/-0.000 40%-45% ± 5% (PCD)

STAINLESS STEEL/S.S TUBE (REQUIRED DC PARAMETERS) -PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
0.000-1.000 12*-14* +0.000/-0.002 35%-40% ± 5%
1.000-5.000 14*-16* +0.000/-0.002 35%-40% ± 5%

Tube has do be drawn form Pre-drawn Tube

S.S TUBE (REQUIRED QC PARAMETERS) PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
For All Sizes 16*-18* +0.005/-0.000 35%-40% ± 5%

HIGH CARBON/NICKEL CHROMIUM (REQUIRED DC PARAMETERS) -PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
For All Sizes 10*-12* +0.000/-0.002 40%-50% ± 5%

E.C/ALLUMINIUM (REQUIRED LIC PARAMETERS) -PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
0.500-1.000 15*-17* +0.005/-0.000 20%-25% ± 5%
1.001-4.000 15*-17* +0.008 (Pin pass) 20%-25% ± 5%
4.001-6.000 15*-17* +0.010 (Pin pass) 20%-25% ± 5%
6001-10.000 16*-18* +0.010 (Pin pass) 20%-25% ± 5%

ALLOY (REQUIRED QC PARAMETERS) PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
For All Sizes 15*-17* +0.010 (Pin pass) 30%-35% ± 5%

SOLDER WIRE (REQUIRED QC PARAMETERS) PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
For All Sizes 12*-14* +0.000/-0.000 30% ± 5%

BUNCHING DIE (REQUIRED QC PARAMETERS) PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
Below 8.00 mm 22*-24* +0.002/-0.000 20%-25% ± 5%

SILVER/GOLD (REQUIRED LIC PARAMETERS) - PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
0.000-0.500 16*-18* +0.002/-0.000 20%-25% ± 5%
0.501-2.000 18*-20* +0.002/-0.000 20%-25% ± 5%

BRASS (REQUIRED QC PARAMETERS) PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
For All Sizes 12*-14* As per wire Sample 30%-40% ± 5%

G I Wire ( M.S. Wire)
0.06% BELOW LOW CARBON (REQUIRED QC PARAMETERS) – PCD

SIZE RANGE REDUCTION ANGLE TOLERANCE BEARING LENGTH B/L Tol..%
For All Sizes As per Formula As per Customer 35%-40% ± 5%

Stranding/Compacting Die:- (For All Size) Reduction Angle =22*-24* Bearing Length =30%-35% Tolerance = +0.000/-0.000 -50(Micron)

Attention:- Reduction Angle and Back Releif Angle are Same For Below 5.00 mm All Die Size Bearing Length Proper Banding Maintain

ONLY H-13 = E.C & ALLOY MATERIAL SIE BEARING LENGTH 25% TO 40% (DIE SIZE +15 MICRON) PIN PASS

 

Note: Any Deviation in Above Parameters Need To Be Approved By Department Head

 

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