3 events with tag "cutting"
1897
ID: 5603
Hermann Pfauter patents gear hobbing machine in Germany - revolutionizes precision gear manufacturing
ID: 5603
1919
ID: 5609
DIN standardizes metric threads - German thread cutting becomes global standard replacing various national systems
ID: 5609
1937
ID: 5606
German researchers establish optimal tool geometry relationships - rake angles, clearance angles for different materials
ID: 5606