Documents Chapter 7 glass & glass fragments

1. What is a Glass?A super cooled liquid which possesses highviscosity and rigidity. It is a non-crystalline inorganicsubstance.Importance in the study of glass: as physical…

Technology Spot and Projection Welding

1. SPOT AND PROJECTIONWELDING 2. Types of WeldingWeldingProcessArc Resistance GasSpot Seam Projection Flash 3. Spot Welding 4. Spot Welding...In Spot Welding the pieces…