20823 S5002278

Th® geometry of the insert and dealgn of the toołhofder N*v* e dłrecf influence on the proper center-height setting. in generał* fhough. for insert widthm of 0118“ (2.9972 mm) end above, the fołtowing formule worłcs w»Ji; 0-031** width ofcut + 0.001" maximum<Figure 5}

(0,7174 mm i szerokość skrawania + 0,0254 sam nas.)

Figurę 5:

The formuła shown cen be used to determine the proper center height for ineert widths of 0.118” (2,9972 mm) and above.

Figurę 1: Among the different types of chips are (feft to right) long,

unformed chips; partiałfy formed “pigtail" chips; and correctiy formed “ciock-spring" chips.

Figures 2;

A smali, negative land at the ffontal cutting edge allows a negative part-off insert to be operated at heavy feed rates and under adverse cutting conditions. 2a The positive insert is for Iow, flxed feed rates or when the work-piece materiał requires a Iow cutting speed.