Pasagui, Lhexter Bryan C. ME-4103
11-51269

Assignment #2
1. For me, forging is the process of shaping molten metals using specific forces while smithy is the location or the place where forging occur.
2. Open fire produces more heat than stock fire.
3. In chamber furnace, reheating of materials are held, it is mostly used in forging. While in twin chamber furnace reheating of circular rods occur. And in box furnace, heating of flat surfaces.
4. With drawing, tensile strength rises and surface finished is achieved.
5. Die pressure decreases because the die exit’s size increases.
6. As the back tension increases the die pressure decreases.
7. In direct extrusion, extruded products go in different locations. In indirect extrusion, the …show more content…
Cracking due to the material’s viscosity, the material cannot flow easily.
10. This defect occur when the material experienced more viscosity in the center rather than in the material’s surface.
11. Some extruded products are plastics materials, casings, railings and window braces.
12. The extrusion process is limited only in its equipments, because not all materials can be extruded.
13. In rolling process, metals are passed through some rotating compactors in order to attain your desired shape.
14. Because in rolling we don’t change the materials properties compare to the casting process, so rolled products are stronger than casted products.
15. In roll bending, cylindrical outputs are produced. In roll forming, the production of long lengths are achieved. In flat rolling, considering as the basic among the others, it uses rectangular shape.
16. Because its easier to move smaller roll than a larger roll.
17. The significance of roll diameter in reference to the separating force is that the larger the diameter the larger the separating force.
18. • two-high stand: reversed rotation is possible in opposite directions.
• three-high stand: the top and bottom roll rotate in same direction.
• four-high stand: this is used in plates and