Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 44 views

    Welding

    Uploaded by

    mukesh201094
    The document discusses safety precautions and procedures for welding experiments in a workshop course. It outlines important safety equipment like welding shields, gloves, and goggles. It also describes tools used in the welding shop like electrodes, earth clamps, wire brushes and experiments that involve making butt and lap joints through arc welding. Students are instructed to take safety precautions and properly prepare materials before welding.

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd

    Welding

    Uploaded by

    mukesh201094
    44 views8 pages
    The document discusses safety precautions and procedures for welding experiments in a workshop course. It outlines important safety equipment like welding shields, gloves, and goggles. It also describes tools used in the welding shop like electrodes, earth clamps, wire brushes and experiments that involve making butt and lap joints through arc welding. Students are instructed to take safety precautions and properly prepare materials before welding.

    Original Description:

    welding

    Original Title

    welding

    Copyright

    © © All Rights Reserved

    Available Formats

    DOC, PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    The document discusses safety precautions and procedures for welding experiments in a workshop course. It outlines important safety equipment like welding shields, gloves, and goggles. It also describes tools used in the welding shop like electrodes, earth clamps, wire brushes and experiments that involve making butt and lap joints through arc welding. Students are instructed to take safety precautions and properly prepare materials before welding.

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    44 views8 pages

    Welding

    Uploaded by

    mukesh201094
    The document discusses safety precautions and procedures for welding experiments in a workshop course. It outlines important safety equipment like welding shields, gloves, and goggles. It also describes tools used in the welding shop like electrodes, earth clamps, wire brushes and experiments that involve making butt and lap joints through arc welding. Students are instructed to take safety precautions and properly prepare materials before welding.

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    You are on page 1of 8

    COURSE : - B.Tech.

    SESSION : - 2011-12
    YEAR : - Ist Year SEMESTER : - Ist & IInd
    SUBJECT : - WORKSHOP CODE :-

    SAFETY PRECAUTIONS

    1. Always weld in well ventilated place.

    2. Do not weld around combustible materials

    3. Never see the weld arc without weld shield.

    4. Always wear the hand gloves, safety goggles, and apron.

    5. Always use spark lighter to light the cutting / welding torch.

    6. Keep away the cylinders from electric board or electrical sparking.

    7. Always see towards the job through weld shield but not another else.
    COURSE : - B.Tech. SESSION : - 2011-12
    YEAR : - Ist Year SEMESTER : - Ist & IInd
    SUBJECT : - WORKSHOP CODE :-

    Experiment No. 1
    OBJECT:
    Study of tools and operation in welding shop.

    EQUIPMENT USED IN WELDING SHOP:


    1. Electric Holder: - It is used for holding the electrode.

    2. Electrode: - Electrodes are made up of low carbon steel & iron. During
    the welding the coasting of carbon removes and iron for welding.

    3. Earth Clamps: - It is used for resist the earthing and flow of current in
    the system.
    4. Chipping Hammer: - It is used for removing the waste material and
    flux coating from the welded job.

    5. Wire Brush: - It is used for cleaning the surface of job before welding
    and also used for cleaning the scales from welded surface.

    6. C-Clamp: - It is used for holding the job properly.

    7. Scriber: - It is used for marking the jobs according to the drawings.

    8. Scale: - It is a main and general measuring tool to measure open


    dimensions.

    9. File: - It is used for chipping the material from the job.


    10. Tong: - It is used for holding the materials or hot jobs which can not
    be hold without it after welding.

    11. Gloves: - It is a safety tool to protect hands while welding is under


    process.

    12. Goggles: - During welding, a large amount of heat is generated and


    it may harmful for eyes so to protect the eyes from these heat goggles
    are used during welding.
    COURSE : - B.Tech. SESSION : - 2011-12
    YEAR : - Ist Year SEMESTER : - Ist & IInd
    SUBJECT : - WORKSHOP CODE :-

    Experiment No. 2

    OBJECT:
    To prepare a butt joint by arc welding.

    MATERIAL USED:
    M.S.Plate (75 X 45 X 5mm. - 2 Nos.)

    TOOLS AND EQUIPMENT USED:


    Welding transformer, wire brush, chipping hammer, electrodes,
    electrode holder, face shield, apron.etc.

    PROCEDURE:
    1. Place work piece on welding table in proper position after
    preparation of it.

    2. Hold the welding holder with electrode and then switch on the
    welding transformer and start welding on properly hold job.

    3. Set proper current and polarity prepare welding

    4. Then start the welding very carefully

    PRECAUTIONS:
    1. Do not weld without welding shield and apron.
    2. The work piece and place of work should be dry and oil free to
    avoid any type of accident.

    COURSE : - B.Tech. SESSION : - 2011-12


    YEAR : - Ist Year SEMESTER : - Ist & IInd
    SUBJECT : - WORKSHOP CODE :-

    Experiment No. 3
    OBJECT:
    To prepare a lap joint by using arc welding.

    MATERIAL USED:
    M.S.Plate (75 X 45 X 5mm. - 2 Nos.)

    TOOLS AND EQUIPMENT USED:


    Welding transformer, wire brush, chipping hammer, electrodes and
    electrode holder etc.

    OPERATIONS:
    Place the work piece on the welding table in proper position after
    the edge preparation. Set proper current and polarity to prepare for
    welding. Hold the welding electrode holder with a M.S. electrode and start
    welding very carefully on well clamped job pieces to get lap joint. To get
    proper welding we should tag weld the job.

    Precautions:
    1. Do not weld without face shield and apron to avoid eye problem.

    2. Always take proper safety measure to successive welding.

    You might also like