TH31518B - Method for manufacturing a hollow barrel with a bottom using a compression press - Google Patents

Abstract

A manufacturing method is provided to create a hollow barrel with a butt that may be used in a drawing head. Spin the rounds of magnetic transcription and recording systems such as videotape recorders. And a digital audio tape recorder The production method has a section that is a single circular disc. To create a hollow barrel Pushing the fish from the side wall of the hollow cylinder in a direction parallel to the inner wall. A true compression mold in order to adjust the thickness of the side walls evenly. And machining the outer face of the hollow cylinder side wall to provide roughness Of the surface of the face and the roundness

Claims (1)

1.How to produce a hollow barrel with a bottom Which has the following steps Pressing a single circular plate using the first punching machine to create Hollow barrel with a bottom Pushing the end of the side wall of the hollow cylinder in a direction that is literally parallel to the side wall using a second hammer to achieve a defined side wall shape and Nominal side wall thickness Compression of the bottom of a hollow cylinder to create annular protrusions on the periphery of the butt. Pressing extends the center of the butt of the cylinder assembly.