585 Каталог INGERSOLL 2011 Режущий инструмент и инструментальная оснастка Стр.587

Каталог INGERSOLL 2011 Инструмент и оснастка Стр. 587 0585 Lab2u

STANDARD GUN DRILL PAD FORMS Drilling capacity and hole finish depend on the geometrical shape of the drill head. Both pad form and sharpening must be adjusted to the workpiece material. The pad form is determined when the tool is manufactured. Regrinding may change the cutting geometry but the pad form will remain the same. All cross section profile parameters such as: P La and a must be precisely adjusted to the workpiece material properties. Standard A-Form Applications: For all material groups. Works well in materials that tend to shrink. Maintains precision bore tolerance and straightness. For cast iron & aluminum alloys (coated). Drilling through cross holes and angled entry and exits. Large gap between pads ensures good lubrication. Applications: For cast iron & aluminum alloys. Maintains high precision hole tolerances. Excellent surface finish. Applications: With larger back taper for use in materials that tend to shrink. (Some alloys and stainless steels). Drilling through cross holes and angled entry and exit. Not recommended for precise straightness control. Applications: For cast iron only (with coating). Works very well in gray cast iron. Standard E-Form Standard H-Form Standard I-Form Applications: General purpose for all materials. Commonly used in crankshaft and other forged materials. Precise straightness control. Applications: For all non-ferrous materials. For cast iron greater than 5 mm hole diameter. Can be used in wood & plastic with a larger back taper. Applications: For aluminum and brass when best surface finish is required. Can be used in cross hole and interrupted cut applications.