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Manufacturing Engineering

Holding Tools

Holding Tools

Holding Tools Holding tools used in fitting shop comprises of basically vices and clamps. The clamps are C or G clamp, plane slot, goose neck, double end finger, u-clamp, parallel jaw, and clamping block. The various types of vices used in fitting shop are given as under: 19.2.4.1 Vices The …

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Surface Coating Operation

Surface Coating Operation

Surface Coating Operation The various manufacturing processes such as casting, forging, machining, hot working, cold working and joining processes etc. produce different surfaces. Therefore for getting desired surface of the part, subsequent surface preservation processes are needed. These preservation processes are called as surface coating of metals. Coatings on surfaces are employed on most …

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ACCESSORIES AND ATTACHMENTS OF LATHE

ACCESSORIES AND ATTACHMENTS OF LATHE

ACCESSORIES AND ATTACHMENTS OF LATHE There are many lathe accessories provided by the lathe manufacturer along with the lathe, which support the lathe operations. The important lathe accessories include centers, catch plates and carriers, chucks, collets, face plates, angle plates, mandrels, and rests. These are used either for holding and supporting the work …

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Shielded Metal Arc Welding (SMAW)

Shielded Metal Arc Welding (SMAW)

Shielded Metal Arc Welding (SMAW) Shielded metal arc welding (SMAW) is a commonly used arc welding process manually carried by welder. It is an arc welding process in which heat for welding is produced through an electric arc set up between a flux coated electrode and the workpiece. The flux coating of electrode …

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ARC WELDING PROCESSES

ARC WELDING PROCESSES

ARC WELDING PROCESSES The process, in which an electric arc between an electrode and a workpiece or between two electrodes is utilized to weld base metals, is called an arc welding process. The basic principle of arc welding is shown in Fig. However the basic elements involved in arc welding process are shown …

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Tool Signature

Tool Signature

Tool Signature Convenient way to specify tool angles by use of a standardized abbreviated system is known as tool signature or tool nomenclature. It indicates the angles that a tool utilizes during the cut. It specifies the active angles of the tool normal to the cutting edge. This will always be true as …

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Welding joints

Welding joints

Welding joints Some common welding joints are shown in Fig. Welding joints are of generally of two major kinds namely lap joint and butt joint. The main types are described as under. 1. Lap weld joint Single-Lap Joint This joint, made by overlapping the edges of the plate, is not recommended …

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DEVELOMENT OF PATTERN LAYOUT

DEVELOMENT OF PATTERN LAYOUT

DEVELOMENT OF PATTERN LAYOUT Projective geometry forms the basis of successful layout of patterns for making different jobs in sheet metal work. Most of the patterns are obtained from development of surfaces of some common geometrical solids like cylinder, prism, pyramid and cone. These shapes may be required to be developed either …

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SHEET METAL OPERATIONS

SHEET METAL WORK

SHEET METAL OPERATIONS The major sheet metal operations carried out in sheet metal work are as follows: 1. Cleaning 2. Measuring 3. Marking 4. Laying out 5. Hand cutting 6. Hand shearing 7. Hand forming 8. Edge forming 9. Wiring 10. Joint making 11. Bending 12. Drawing 13. Soldering 14. …

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POWDER METALLURGY

POWDER METALLURGY

POWDER METALLURGY Powder metallurgy is used for manufacturing products or articles from powdered metals by placing these powders in molds and are compacting the same using heavy compressive force. Typical examples of such article or products are grinding wheels, filament wire, magnets, welding rods, tungsten carbide cutting tools, self-lubricating bearings electrical contacts and turbines …

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