wk 1 basic hand tools SMAW Grade 9/10.pptx

wk 1 basic hand tools SMAW Grade 9/10.pptx

1. SHIELDED METAL ARC WELDING BASIC HAND TOOLS

2. Classifications of Hand tools

3. 1. MEASURING TOOLS Measuring tools are those that used for checking the length, width or thickness of an objects for the shape of objects things like the flatness, straightness, roundness or squareness. Below are some of the measuring tools that can be found in a tool room and commonly used in SMAW activities:

4. a. Push-Pull Rule – This flexible rule when extended will support itself, but may also be used to measure curved, irregular surfaces. Steel tape rule blade is usually ½ inch wide and 72 inches long. The graduation is sixteenths, except for the 6 inches which are graduated I thirty-seconds of an inch

5. b. Steel Tape – similar to a steel tape rule except for its flexible number of feet that are marked on the tape. The tape is 3/8 inch wide and available in lengths from 25 to 100 feet.

6. c. Steel Rule – This is the most common tool used in tool room. It is made of tampered steel about 1/8 inch thick and ¾ inch wide and 6 to 12 inches long. The same style maybe obtained in length from 1 to 48 inches.

7. d. L- Square – is an instrument used to measure the square of an

8. e. Combination Square – a tool that serves several purposes in woodworking, stonemasonry, and metal working. It is composed of a ruler and one or more interchangeable heads that may be affixed to it. The most common head is the standard or square head, which is used to lay out or check right and 45° angles.

9. f. Micrometer Caliper – is a precision measuring instrument used to measure dimension in thousandths of an inch.

10. g. Vernier Caliper – is a precision measuring instrument used to measure inside, outside diameter, as well as depth of hole and slot.

11. h. Dividers – These are used for measuring or setting of distances, and to lay out arcs and circles.

12. 2. CUTTING TOOLS Tools that are used to remove some material from the work piece by means of shear deformation. Cutting may be accomplished by single-point or multipoint tools.

13. a. Hacksaw – is a tooth-cutting tool usually with a solid and adjustable frame. The main parts are handles, blade, tightening screw and nuts. The tool is mainly used in cutting metals like plates, pipes, rods, bars, angular, etc. but of minimal thickness, width, length. Sometimes this tool is used for cutting plastic pipes and other materials to suit its purpose. Blade of hack saws are made of thin, high grade steel usually 1.27 mm thick and 30.48 long with an inclined row of teeth serving as cutter

14. 3. DRIVING TOOLS Any tool used to push (drive) object into another object. Their general purpose is to connect two pieces of metal or objects together, reshape to fit the desired output, or to connect metal to another material.

15. a. Hammer - a tool consisting of a weighted "head" fixed to a long handle that is swung to deliver an impact to a small area of an object.

16. b. Screw Drivers - A tool, used for screwing and unscrewing screws. A typical simple screwdriver has a handle and a shaft, ending in a tip the user puts into the screw head before turning the handle.

17. 4. HOLDING TOOLS Tools that are used to firmly holds any material together. Each holding tool is different but the common principles between them is that they all secure a piece of material when your working with it..

18. a. Pliers - pincers with parallel, flat, and typically serrated surfaces, used chiefly for gripping small objects or bending wire. "a pair of pliers"

19. b. C-Clamp- also called G-clamp, a device typically used to hold a wood or metal work piece, and often used in, but are not limited to, carpentry and welding.

20. 5. BORING TOOLS Tools that are used to make or enlarge a hole that has already made (or cast) by means of a single-point cutting tool (or of a boring head.

21. a. Hand drill - a manual tool that converts and amplifies circular motion of the crank into circular motion of a drill chuck. Though it has been replaced in most applications by power drills, the hand drill is used by many woodworkers.

22. Electric drill - a manual tool that converts and amplifies circular motion of the crank into circular motion of a drill chuck. Though it has been replaced in most applications by power drills, the hand drill is used by many woodworkers.

23. 6. MARKING TOOLS Tools that are use to transfer all the little notations that appear on your pattern, the ones that tell you where to cut, fold, sew, or place adjoining pieces. It tells the pattern instructions, work together with these notations on how to manipulate each pattern piece.

24. a. Lead Pencil - a pencil of graphite enclosed in wood.

25. b. Ball pen - also known as a biro or ball pen, is a pen that dispenses ink (usually in paste form) over a metal ball at its point, i.e. over a "ball point".

26. 7. CRIMPING TOOLS Any device used to conjoin two pieces of metal by deforming one or both of them to hold each other called crimp like affixing a connector to the end of a cable.

27. 6 Pin/8 Pin crimp Tool – a tool which contains a die that is often exchangeable and is closely 23, 132: in 'Designing LAN Wiring Systems:.

28. 8. TESTING TOOLS These are devices used to test the presence of, rather than measure, electrical conditions that ranges to determine whether or not voltage is present in a circuit,.

29. Multi-meter Tester – also known as a VOM (volt-ohm-milliammeter). It is an electronic measuring instrument that combines several measurement functions in one unit the typical unit of which can measure voltage, current, and resistance.

30. Continuity Tester – an instrument used to determine if an electrical path can be established between two points; that is if an electrical circuit can be made. The circuit under test is completely de-energized prior to connecting the apparatus.

31. 9. STRIPPING TOOLS Are tools that are designed with stripping holes to make one or more defined conductor cuts. Pliers with circular cutting holes are only suitable for stripping the cross-section they are designed for.

32. a. Wire stripper – A small, hand-held device used to strip the electrical insulation from electric wires.

33. b. Electrician knife - designed to cut electrical insulation, cables, insulation, and more. Not only for electricians.