Общий каталог FANAR 2021 - страница 329

Rotation Rotation i Technical information 10.9.e. Processing technology and strategy To increase the tool life,the climb-milling is recommended. Milling of the pockets usually begins with a pre-drill the hole. It is also used a spiral interpolation or linear ramping. Climb milling Conventional milling Feed Feed In these cases, the feed rate should be reduced to 25-50% of the values shown in the tables and cutting speed used as for grooving. In any case operating conditions can vary considerably. Therefore at the beginning of machining is recommended to reduce cutting to 50% from the tables selection, and then increasing to them. Deviations from the described conditions, exceeding the axial depth Ap and width Ae, can lead to a reduction in the cutting parameters V and fz from those given in the tables. 10.9.f. High speed milling HSM (High Speed Machining) – machining strategies based on chip thickness control and tool load reduction. By properly modifying the machining parameters, and in some cases using tools with a special design, it is possible to achieve lower mechanical and thermal load of cutting edges while increasing productivity. Influence of the cutting width on the thickness of the chip. The most common milling strategies based on chip thickness control are: Trochoidal milling High Feed Milling (HFM) 12 326