A TOOL FOR CHIP REMOVING MACHINING AS WELL AS A PART AND THREADED JOINT THEREFOR

摘要

A screw-type joint comprises a female screw and a male screw in a screw thread shape where a cutting tool and a loose top of the same are interacting to comprise two parts detachably connected. A profile form of each screw thread is determined by the upper part and two flanks and limits a screw-type groove having a bottom part. A first flank is inclined for a central axis line of the tool at a first angle which is smaller than a second angle in which the second flank is inclined for the central axis. Therefore, a tensile force larger than a compression force can be applied on the screw-type joint while preventing damage to the screw thread to reinforce the screw thread compared with the screw thread having a symmetrical profile form.