Общий каталог Tungaloy 2020 - 2021 - страница 1664

Chip shapes

• Chip shape produced with central insert
• A conical coil shape whose apex point coincides with the rotating center of the drill is the basic shape. The chips are broken into small sections with increases in feed. However, excessively high feed causes the chip to increase in thickness and develops vibration which disturbs stable machining.
• In TDX drills, marked chips shown below are the most preferable shapes. This type of chip is broken into adequate lengths by centrifugal forces when used in tool-rotating condition. On the other hand, when used in work-rotating condition such as on a lathe, a continuously long chip is often produced without entangling.
• Relation between chip shapes and feeds (In the case of central insert)

Carbon steels, alloy steels, etc. Low carbon steels, stainless steels, etc.

• Example of chip shape in work-rotating applications (In the case of central insert) (ø26, JIS S45C, V = 100 m/min, f = 0.1 mm/rev)

c

100 mm