Patent ID: 11869180

Abstract:
The invention provides a measurement method and system of undeformed chip thickness in micro-milling. This method includes the steps of: S1: acquiring a surface topography picture of the bottom of a flute after micro-milling; S2: extracting a tool mark at the central line of the flute from the surface topography picture; S3: calculating a spacing distance between adjacent tool marks and calculating the difference of equivalent cutting radius between adjacent cutter teeth based on the spacing distance between adjacent tool marks; and S4: reconstructing the instant undeformed chip thickness in micro-milling based on the difference of equivalent cutting radius between adjacent cutter teeth. The measurement method and system of undeformed chip thickness in micro-milling allow undeformed chip thickness measurement in micro-milling without measuring the tool runout and wear in advance, which significantly shortens the measurement flow and improves the measurement efficiency while effectively ensuring the measurement accuracy.