Обзор и испытание резьбофрез CNCM с пластинами гребенками DaoQin

In the video, our technologist, Vyacheslav, talks about thread milling cutters and the thread milling process. We also tested a thread milling cutter with a comb-type insert on a CNC machine, producing external and internal M30 threads on a part. At the end of the machining, we checked the condition of the insert's working edges under a microscope and the thread quality with gauges. The machining modes are also shown in the video. When machining the threads, we used climb milling (the tool moved from top to bottom when milling external threads, and from bottom to top when milling internal threads). We cut into the workpiece along an arc. ⚡Cutting modes for machining internal threads. Workpiece: 40X steel. Drilling: Vc = 130 m/min, fn = 0.1 mm/rev. Chamfer milling: Vc=200 m/min, fn=0.1 mm/rev, ap=1 mm. Thread milling, roughing passes: Vc=200 m/min, fn=0.07 mm/rev, ap=20 mm. First pass: ae=0.875 mm, second pass: ae=0.43 mm, third pass: ae=0.43 mm. Finish pass: Vc=200 m/min, fn=0.05 mm/rev, ap=20 mm, ae=0 mm. Cutting modes for machining external threads. Workpiece: 40X steel. Thread diameter milling: Vc=200 m/min, fn=0.1 mm/rev, ap=30 mm, ae=0.5 mm. Chamfer milling: Vc=200 m/min, fn=0.1 mm/rev, ap=1 mm. Thread milling, roughing passes: Vc=200 m/min, fn=0.1 mm/rev, ap=20 mm. First pass: ae=0.875 mm, second pass: ae=0.43 mm, third pass: ae=0.43 mm. Finish pass: Vc=200 m/min, fn=0.05 mm/rev, ap=20 mm, ae=0 mm. ⭐ All block thread mills: https://cncmagazine.ru/frezy-po-metal... All comb inserts: https://cncmagazine.ru/plastiny-tverd... #threadmills #milling cutters #thread