| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention is intended for cooling and lubing in drilling or boring deep holes. Annular groove is made on face surface of machined billet to mate with annular ledge of lubricant-coolant feed assembly that has body wherein jig bush is fitted. In making annular groove, tool is centered on guide surface of jig bush. Then, annular ledge of lubricant-coolant feed assembly face surface is pressed against face surface of machined billet. ^ EFFECT: higher accuracy of machining deep holes. ^ 3 cl, 4 dwg, 1 ex |
