| 摘要 |
FIELD: application of multi-layer coats on cutting tools; mechanical engineering and metal working. ^ SUBSTANCE: working surfaces of tools are covered with multi-layer vacuum plasma coat. Layers are made from carbonitride of refractory metal or compound of metals. Each subsequent layer is settled at higher content of acetylene in mixture of reaction gases as compared with previous layer. ^ EFFECT: increased serviceability of cutting tools due to different hardness of layers forming barrier to cracking. ^ 2 cl, 2 ex |
