CVD polycrystalline diamond Blanks for Dressing produced by JCB does not contain any additives, is polycrystalline structure of pure diamond, there is no soft and hard surface, and not easy to break, with high hardness, wear resistance and thermal stability and other characteristics, different grades of blank wear ratio between 200,000 to 1.8 million, stable performance, sharp dressed grinding wheel, high finish of the workpiece. The CVD polycrystalline diamond Blanks for Dressing produced by Tianyou can be used to make single point diamond pens, multi-point wheel dressers, dressing rollers, forming knives, etc., which is an ideal substitute for natural diamonds and single crystal diamonds.
CVD polycrystalline diamond dressing tool blank produced by our company does not contain any additives, is a polycrystalline structure of pure diamond, there is no soft and hard surface, and is not easy to break, with high hardness, wear resistance and thermal stability and other characteristics, different grades of blank wear ratio between 200,000 to 1.8 million, stable performance, sharp dressed grinding wheel, high finish of the workpiece. The CVD polycrystalline diamond dressing tool blank produced by our company can be used to make single point diamond pen, multi-point wheel dresser, dressing roller, forming knife, etc., which is an ideal substitute for natural diamond and single crystal diamond.
| Material item | Natural diamond | CVD diamond |
| Hardness /(GP) | 100 | 70-100 |
| density/(g/cm3) | 3.515 | 2.8-3.5 |
| 熔点/°C | 4000 | approach4000 |
| Modulus of elasticity/Pa | 1.04X1012 | 1.04X1012 |
| Young's modulus/GPa | 1200 | 1050 |
| Thermal shock coefficient/(W/m) | 107 | 107 |
| Friction coefficient | 0.08-0.1 | 0.08-0.1 |
| Fracture toughness MPa.m1/2 | 约3.4 | 1-8 |
| Tensile strength b/Gpa | 约3.0 | 0.2-0.4 |
| Coefficient of thermal expansion/(X10-6/K) | 1.0(300K) | 1.0(300K) |
| 2.7(500K) | 2.7(500K) | |
| 4.4(1000K) | 4.4(1000K) |
| Product specification | Length L, (mm) | Width W, (mm) | Thickness T, (mm) |
| CVD L*W*04 | L | W | 0.4 |
| CVD L* W*06 | L | W | 0.6 |
| CVD L* W*08 | L | W | 0.8 |
| CVD L* W*10 | L | W | 1.0 |
| CVD L* W*15 | L | W | 1.5 |
| CVD L* W*20 | L | W | 2.0 |
Note: Single or double side polishing is available, special shape and size can be cut according to customer requirements.
