Общий каталог Widia 2017

Troubleshooting Guide

problem	source	solution
drill breakage	clamping chuck	• Check clamping accuracy and torque transmission. Use hydraulic clamping chuck or high-precision chucking system.
	workpiece movement	• Stabilise workpiece chucking and check stability of machine tool.
	wrong drill insuffi cient coolant cutting conditions	• Check drill type, drilling depth, cooling system, and workpiece material. • Check cooling lubricant. In the case of internal coolant supply, increase coolant pressure. In the case of external coolant supply, adjust positioning of coolant jet. Cool from both sides. • Check cutting values, and possibly reduce feed.
	clamping chuck	• Check torque transmission. Use hydraulic clamping chuck or high-precision chucking system.
splintering on the cutting corners	workpiece movement	• Stabilise workpiece chucking and check stability of machine tool.
	wrong drill	• Check drill type, drilling depth, cooling system, and workpiece material. Possibly use longer drill.
	insuffi cient coolant	• Check cooling lubricant. In the case of internal coolant supply, increase coolant pressure. In the case of external coolant supply, adjust positioning of coolant jet. Cool from both sides.
	cutting conditions	• Check cutting values, and possibly reduce feed.