Variable-Speed Lathe Cuts Left-Hand Threads
Grizzly’s Model G0768 variable-speed lathe offers two ranges: a low range from 50 to 1,000 rpm and a high range from 100 to 2,000 rpm.
Grizzly’s Model G0768 variable-speed lathe offers two ranges: a low range from 50 to 1,000 rpm and a high range from 100 to 2,000 rpm. The lathe features a 0.787" spindle bore and MT#3 taper. It is powered by a 600-W (3/4-hp), 110-V single-phase 10A motor. The distance between centers measures 15 3⁄4", and swing over the bed is 81⁄4".The lathe is capable of cutting inch threads ranging from 6 to 44 TPI and metric threads from 0.4 to 3.0 mm, and it is equipped with reverse feed for cutting left-hand threads.
Standard equipment includes a 4" three-jaw chuck with two sets of jaws; a 4" four-jaw chuck with reversible jaws; a 6 3⁄4" faceplate; steady and follow rests; and a four-way turret toolpost.
UNCC researchers introduce modulation into the tool path. Chip breaking was the goal, but higher metal removal rate is an intriguing secondary effect.
As demonstrated at this Cincinnati-area shop, machines that both mill and turn shine brightest when workpieces are massive.
Machine tool builders in Korea have been playing a catch-up game for the past decade. A review of current developments in machine tool technology indicates that Korea is rapidly pulling up with manufacturers in Japan, Europe and the United States. The products from Korea closely match their counterparts from other global suppliers in terms of capability and quality.