Trammel Points: consist of … Lüder’s bands can be eliminated by cold-rolling the thickness by 0.5-1.5%. DNT234/2 MECHATRONICS WORKSHOP PRACTICE I SHEET METAL FORMING 1.0 OBJECTIVE To expose to the techniques of shaping metal in the processes of cutting, bending, and folding, either with the used of hand tool or by use of specific machine. 5. Sheet Metal Work :30 marks Welding :10 marks Viva Voce: 10 marks Total marks: 50 marks Note : No mini Drafters and drawing boards required .Drawings (Developments) can be done on sketch sheets using scale , pencil and geometrical Instruments. • Yield-point elongation – Lüeder’s bands on Low-carbon steels and Al-Mg alloys. SHEET METAL HAND TOOLS Scriber: also known as metal worker’s pencil. 6. For sheet metal parts, the thickness is the same everywhere. 2.0 INTRODUCTION The sheet metal shop is very important for every engineering concern. ANS (I) Steel rule (ii) Vernier caliper (iii) Micrometer Sheet metal usually refers to a thin metal plate with a thickness of 6 mm or less.. Sheet metal fabrication is a cold processing process, which is commonly used for punching, bending, drawing, and forming. • Anisotropy Reference Books S k Hajra houdhry, A K Hajra choudry , ^ Elements of Workshop Technology: It deals with the working of metal sheets. Dividers: used for drawing circles , arc on sheet metal and also used to mark a desired distance between two points. ANS Sheet metal work is used for making, Cutting and bending Q.2 Which are the sheets of metals? PRACTICAL 3: SHEET METAL SHOP Q.1 What is sheet metal work? It has one hardened sharp pointed edge to scratch line on sheet metal. Sheet-metal Characteristics • Elongation – the capability of the sheet metal to stretch without necking and failure. 7 Sheet and plate metalwork 277 7.1 Sheet and plate metalwork (introduction) 278 7.2 Roll-bending sheet metal and plate 296 7.3 Flow forming sheet metal 301 7.4 The principles of metal spinning 318 7.5 Swaging sheet metal 324 7.6 Basic fabrication procedures 330 Exercises 345 8 … ANS (I) Galvanized iron (ii) Stainless steel (iii) Copper (iv) Aluminium Q.3 Name the sheet metal hand tools? WORKSAFE VICTORIA / A GUIDE TO SAFETY IN THE METAL FABRICATION INDUSTRY 3 CONSULTATION All employers are required to consult their employees, so far as reasonably practicable, on matters that may directly affect their health, safety or welfare.

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