Каталог Carmex общий 2021 - страница 365

14 17 18 ® Mill-Thread Technical Section Tool Selection For indexable and solid carbide Mill Threads The following chart provides a fairly accurate visual selection tool for Internal Threading. The chart is suitable for the following thread forms: ISO, UN, WHIT, NPT, NPTF, BSPT and PG. 21 29 10 8 7 5 9 12 4 6 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 20 22 24 26 28 30 32 34 36 38 40 44 48 52 58 64 Any tool with a small cutting diameter can produce larger diameter threads. Example: Internal thread M30 x 1.5: Find a Milling Tool to produce d=30 Internal right hand ISO thread with a thread pitch P=1.5 mm. As can be seen from the chart above, the two red lines intersect at a selected tool with a cutting diameter of D=21 mm Chosen toolholder: SR0021 H21 Insert: 21 I 1.5 ISO MT7 30 1.5 If you need assistance, please call your local distributor and ask for help in selecting the appropriate tool as well as for a CNC program to suit your CNC milling machine. B12-3