| Symbol | BM |
|---|---|
| Unit | N/(mm·s½·K) |
| Attribute-ID | thermal contact coefficient |
| Numeric ID | 3293 |
| Value Type | PMTechValue |
The thermal contact coefficient BM is a measurement of the material's ability to conduct and store heat. This coefficient is needed to calculate the flash temperature according to Block.
The thermal contact coefficient for case-hardened wheels is used as the default value:
BM = 13.8 N/(mm∙s1/2∙K)