Каталог Dormer Pramet фрезерование 2021 - 2022 - страница 782

BURRS

Description and cause: Corrective measures: This usually occurs on soft steels and plastic materials. Use a cutting insert with a sharp cutting edge

• Use a cutting insert with positive geometry
• Use a tool with a smaller setting angle

ERRORS IN DIMENSIONS AND SHAPE OF WORKPIECE

Description and cause: Corrective measures: Depends on a number of factors. Use a wear-resistant cutting insert

• Improve the stability of the cutter and workpiece
• Minimize tool overhang
• Use a workpiece with a suitable machining allowance

INADEQUATE CHIP FORMATION

Description and cause: Corrective measures: Producing a chip with a suitable shape is very important to insert Change the feed rate and depth of cut durability and service life of the tool. The workpiece material, the feed Use a more suitable cutting geometry rate, the depth of cut and the cutting geometry all have an effect on chip

• Change the cutting conditions

forming. A chip that is too long is unacceptable for various reasons, while a chip that is too short is undesirable as it overloads the cutting edge and causes vibrations.