The load-bearing area of polycrystalline diamond peeling die supports the vibration of wire material.It is much better to peel the wire surface through PCD mold than by a TC peeling mold.
The bearing area of PCD shaving dies support shaved wire materials against the vibration,the wire surface shaved by a PCD die is much better than that shaved by a TC die.
The lifetime of PCD shaving dies provide 20 to 80 times (depending on materials) longer tool life than TC shaving dies.The long life reduces the setup time of exchange dies.
| Nib material | TC
|
PCD
|
SSCD
|
ND
|
| Size range availability (1) | ||||
| Min. | 0.127 mm | 0.040 mm | 0.007 mm | 0.007 mm |
| Max. | n/a | 35.0 mm | 2.150 mm | 2.0 mm |
| Approx. relative durability (2) | ||||
| Non-ferrous | 1x | 50 – 500x | 17 – 33x | 17 – 33x |
| Ferrous | 1x | 8 – 70x | 4 – 9x | 4 – 9x |
| Approx. relative price (3) | ||||
| 0.460 mm | 1x | 3 – 8x | 3x | 5x |
| 1.001 mm | 1x | 7 – 8x | 15x | 15x |
| 10 mm | 1x | 20 – 26x | – | – |
| Physical properties (4) | ||||
| Elastic modulus | 450 – 650 | 850 – 1150 | 1120 | 700 – 1220 |
| Thermal conductivity | 100 | 500 – 600 | 800 – 2000 | 300 – 1000 |
TC Shaving Die
Advantages: dies cost cheap.
Disadvantages: short lifetime,poor consistency of wire,surface defects,high temperature.
PCD Shaving Die
Advantages: long lifetime,good consistency,high wear resistance and impact resistance.
Disadvantages: Higher unit prices,longer lead time.
Copper wire,aluminum wire,gold wire,titanium alloy wire,etc.that require wire surface shaved.
| 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° |
