Data monitoring and analysis of the granite base of a Chinese coordinate measuring machine
Data Monitoring and Analysis Report on Granite Bases for Chinese CMMs I. Monitoring Objects and Basic Conditions II. Comparative Analysis of Temperature Deformation Monitoring Data (Core Error Sources) Material Maximum surface temperature difference Total expansion per meter ΔL 48h measurement repeatability drift Jinan Qing Granite ≤1.8℃ ≤0.006mm/m 0.6~0.8μm HT250 Cast Iron 7.5~8.2℃ 0.014mm/m 2.1~2.5μm Data…