Spool-valve making process

1. Spool-valve making process dksqudrlf091@naver.com Ahn-byung-gil

2. index • What is Spool-valve?? • Turning • Heat treatment • Grinding • Edge master • Ultrasonic cleaning • Inspection/packing

3. Spool-vlave What is spool-valve? The spool-valve is hydraulic pressure control component which is assembled in a valve body of the automatic T/M.

4. turning • Turning is the process whereby a single point cutting tool is parallel to the surface. It can be done manually, in a traditional form of lathe, which frequently requires continuous supervision by the operator, or by using a computer controlled and automated lathe which does not. This type of machine tool is referred to as having computer numerical control, better known as CNC. and is commonly used with many other types of machine tool besides the lathe.

5. turning 1.turning 2.parting 3.grooving http://www.youtube.com/watch?v=lcGHtI9Lql4

6. Heat treatment • Process to increase the strength of the product surface http://www.youtube.com/watch?v=p3bkZBJV7X8&feature=related

7. Grinding • http://tvpot.daum.net/clip/ClipView.do?clipid=30800202&srcid=290165 Grinding is a finishing process used to improve surface finish, abrade hard materials, and tighten the tolerance on flat and cylindrical surfaces by removing a small amount of material

8. Edge master process to remove burr at surface

9. Ultrasonic cleaning • http://www.youtube.com/watch?v=WwOEVt3vhzE Ultrasonic cleaning uses high frequency sound waves to agitate in a liquid. Cavitation bubbles induced by the agitation act on contaminants adhering to substrates like metals, plastics, glass, rubber, and ceramics. This action also penetrates blind holes, cracks, and recesses. The intention is to thoroughly remove all traces of contamination tightly adhering or embedded onto solid surfaces

10. Inspection/packing Visual inspection and packaging products