L3 Welding Topic 3 Unit 3

WELDING LEVEL 3 M.J Motaung Downloaded from hlayiso.com

TODAY WE ARE FOCUSING ON TOPIC 3: UNIT 3 Weld materials Downloaded from hlayiso.com

OUTCOMES Describe and adhere to all safety precautions according to work site requirements and OHS act’ Avoid safety hazards Interpret work instruction sheet and drawing requirements Demonstrate the gas welding process Conduct quality checks Downloaded from hlayiso.com

LEVEL 3 Oxy acetylene safety precautions according to worksite requirements and OHS act Before using oxy-acetylene equipment, you have to be instructed in the safe operation and use of the equipment. All applicable PPE have to be worn while performing these procedure. Your work area has to be closed off to prevent the possible hazards of your acetylene welding process from affecting anyone close to you. Do not perform oxy-acetylene welding on a part that contain flammable substance Downloaded from hlayiso.com

LEVEL 3 Avoiding safety hazards Eliminate the possible safety hazards before the welding process started, the chance of hazards occurring during welding process will be greatly reduced. Welder should always be on his/her guard while welding in order that possible safety hazards Work instruction sheet and drawing requirements A work instruction sheet will be provided with each welding job to inform the welder about what should be done during welding job Along with the work instruction sheet the manufacturing drawing should also be used to determine how the welding process should be done If you make this a common practice will be able to deliver work pieces that are correct and accurate. Downloaded from hlayiso.com

LEVEL3 Demonstrating the gas welding process Set up the welding station neatly and in an organise manner Produce the 1st weld using the down hand position for a butt weld Produce second weld using vertical position for a butt weld Produce the 3rd weld using the down hand position for a fillet weld Quality checks After work piece has been welded a quality check has to performed on it before it can be sent to the next step in manufacturing process During quality checks process the final work piece has to be checked against the manufacturing drawing to ensure that it adhere to all the dimensions and alignments given on drawing Various welding defects can occur during the oxy-acetylene process: lack of fusion, poor Downloaded from hlayiso.com penetration, excessive welding

LEARNING ACTIVITY 1. Name 10 oxy-acetylene safety precautions according to worksite requirements and OHS act 2. How would you demonstrate the gas welding process 3. Name 5 welding defects that can occur during the oxy-acetylene welding process Downloaded from hlayiso.com

LEVEL 3 In this unit you have learned about the oxy acetylene welding safety precautions according the work piece requirements and the OHS act, how to avoid the safety hazards, how to use interpret a work instruction sheet and manufacturing drawing and how to do quality checks The next presentation we will focus on topic 3: unit4: inspect a work piece Downloaded from hlayiso.com