Cutting an External National Fine Thread (1941)
Jam Handy! Provides a detailed overview of the process of cutting screw threads on a lathe. It explains the different types of screw threads, the importance of precision in machining, and outlines the four basic steps involved in thread cutting: setting up the work, making an undercut, grinding the threading tool, and cutting the thread. The film emphasizes the need for accurate measurements and careful alignment of tools to ensure quality results, showcasing the skill required by machinists.
Keywords
lathe, machining, screw threads, thread cutting, precision, tool grinding, machining process, undercut, alignment, measurements
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