Seminar on welding
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Seminar on welding
- 1. Joining process, WeldingJoining process, Welding and Robotic weldingand Robotic welding Presentation by: Praveen Jalaraddi In-charge/Regional Marketing Officer FUTURE ROBO SYSTEM
- 2. • The student will learn about… • The methods by which materials are joined – permanent and semi- permanent techniques Overview – JOINING MATERIALSOverview – JOINING MATERIALS
- 3. • Metallurgical • Brazing • Soldering • Mechanical • Screw Fasteners • Compression Joints • Riveting • Sheet Metal Folding JOINING PROCESSESJOINING PROCESSES
- 6. Welding ProcessesWelding Processes Ship Structures
- 7. A Brief History of WeldingA Brief History of Welding • Late 19th Century • Scientists/engineers apply advances in electricity to heat and/or join metals (Le Chatelier, Joule, etc.) • Early 20th Century • Prior to WWI welding was not trusted as a method to join two metals due to crack issues • 1930’s and 40’s • Industrial welding gains acceptance and is used extensively in the war effort to build tanks, aircraft, ships, etc. • Modern Welding • the nuclear/space age helps bring welding from an art to a science
- 8. Types of WeldingTypes of Welding Fusion Welding Pressure Welding Homogeneous Heterogeneous Brazing SolderingGas Welding Electroslag High Energy Beam Electric Arc MIG TIG Shielded Metal Arc – “Stick” Friction Welding
- 9. Weldability of a MetalWeldability of a Metal • Metallurgical Capacity • Parent metal will join with the weld metal without formation of deleterious constituents or alloys • Mechanical Soundness • Joint will be free from discontinuities, gas porosity, shrinkage, slag, or cracks • Serviceability • Weld is able to perform under varying conditions or service (e.g., extreme temperatures, corrosive environments, fatigue, high pressures, etc.)
- 10. Fusion Welding PrinciplesFusion Welding Principles • Base metal is melted • Filler metal may be added • Heat is supplied by various means • Oxyacetylene gas • Electric Arc • Plasma Arc • Laser
- 11. Fusion WeldingFusion Welding BASE METAL WELD SOLIDIFIED SLAG ARC POOL WELDING ATMOSPHERE CORE WIRE ELECTRODE COATING ARC STREAM PENETRATION DEPTH
- 12. • Uses a consumable electrode (filler wire made of the base metal) • Inert gas is typically Argon Metal Inert Gas (MIG)Metal Inert Gas (MIG) BASE METAL PUDDLE POWER SOURCE DRIVE WHEELS CONSUMABLE ELECTRODE ARC COLUMNSHIELDING GAS
- 13. Welding PositionsWelding Positions FLATFLAT HORIZONTALHORIZONTAL VERTICALVERTICAL OVERHEADOVERHEAD INCREASING DIFFICULTY
- 14. Joint DesignJoint Design BUTT JOINTBUTT JOINT STRAP JOINT LAP JOINT FILLET JOINT CORNER JOINT
- 15. Example Welding SymbolExample Welding Symbol 1/2” 1/2” 1/2 1/2 One-sided welds are max 80% efficient Two sided are 100% efficient Geometry symbol for V-groove
- 16. Weld Symbols (Butt Joints)Weld Symbols (Butt Joints) Backing
- 17. Weld Symbol (Fillet Joints)Weld Symbol (Fillet Joints)
- 18. Weld Symbol (Corner Joints)Weld Symbol (Corner Joints)
- 19. Robotic Welding MachinesRobotic Welding Machines
- 20. Control OverviewControl Overview • PLC • I/O Modules • Inputs • Sensors • Outputs • Solenoids • Safety • Remote Devices • Robotic Arms
- 21. InputsInputs • Sensors • Proximity Switches • Inductive • Capacitive • Reed Switches
- 22. OutputsOutputs • Machine Components • Solenoids • Relay Coils
- 23. Remote DevicesRemote Devices • Robotic Arms • Turntables • Remote I/O
- 24. SafetySafety • Light Curtains • Emergency Stop • Interface
- 26. Any Queries
- 27. Thank You