Japan, Feb. 27 -- MOLDINO TOOL ENGINEERING LTD has got intellectual property rights for 'BALL END MILL.' Other related details are as follows:
Application Number: JP,2022-058902
Category (FI): B23C5/10@B
Stage: PROBLEM TO BE SOLVED: To provide a ball end mill which can improve quality of a processed surface.SOLUTION: In a ball end mill 1 with two blades, cutting blades 51, 52 are formed at an intersection ridge line between groove wall surfaces 81a, 82a of gash grooves 81, 82 and flanks 61, 62, and the flanks 61, 62 have first flanks 61a, 62a forming a chisel edge 10a, and second flanks 61b, 62b which extend in a rotation direction rearward from the first flanks 61a, 62a at a larger relief angle. When being viewed from an axial tip side, if an intersection point between one cutting blade 51, 52 of two cutting blades and the chisel edge 10a is so made as to be a first intersection point, a straight line, which is orthogonal to a cutting blade tangential line at the first intersection point and passes an axis line is so made as to be a reference line, and an intersection point between a flank boundary line between the first flank and the second flank of the other cutting blade of the blades and the groove wall surface is so made as to a second intersection point when viewed from an axial tip side, the second intersection point is positioned on a rotation angle front side with respect to the reference line, and the flank boundary line of the other cutting blade crosses a cutting blade tangential line of one cutting blade.SELECTED DRAWING: Figure 4 (Grant)
Filing Date: March 31, 2022
Publication Date: Oct. 16, 2023
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
