PROBLEMS THAT CAN OCCUR DURING MACHINING AND METHODS OF SOLVING THEM

Problem

Cause

Methods of solving problem

Conditions of milling

Tool contour and angles

Grade of carbide

Others

Over-wear of cutting edge

wrong machining conditions

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O

/\

Chipping of cutting edge

wrong machining conditions built-up of edge rising unsuitable grade of solid carbide

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\/

O

/\

\/

/\

\/

Chipping of cutting edge during machining

wrong machining conditions overload of edgei too big throat distance

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\/

\/

/\

/\

/\

\/

Unsuitable roughness number

built-up of edge rising

\/

\/

O

/\

O

arising of charring

\/

o

\/

/\

O

/\

\/

irregularity of surface

\/

\/

/\

\/

\/

Too big (batter) or to small dimension

wrong machining conditions wrongly selected end mill

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\/

\/

/\

/\

\/

Wrong forming of chip

too big feed too little volume of flute wrong machining conditions

/\ - increase, \/ - reduce, O - necessarily apply o - applay

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