Induced pressure‐variation transport in unconfined aquifer

Study on the Multi-Axis Machining Technology of Helical Gear

“…According to the machining principle, five-axis machining center can achieve multi-axis machining of helical gears, but have the following deficiencies: ①high cost, especially five-axis machining center with rotary table; ②operational difficulties, furthermore the error rate is higher; ③installation and adjustment difficulties. If using five-axis machining center with double rotary tables to process larger diameter helical gear, the gear blank will interfere with the lower rotary table [4].…”

“…However, in the processing by disc milling cutter, the tool diameter is difficult to determine. If the tool diameter is too large, interference will occur; while if the diameter is too small, the handle of the cutter will collide with the addendum [4].…”