welding Flashcards
(11 cards)
what is stock
stock refers to the ownership shares of a company, representing a claim on part of the company’s assets and earnings. It is also known as equity.
What is Arc Welding?
Arc welding is a process where an electric arc is used to melt and join metals. The arc is formed between an electrode and the workpiece, using heat to create a strong bond.
What is Resistance Welding?
Resistance welding involves joining metal pieces by applying heat and pressure. The heat is generated by the resistance to electric current passing through the workpieces.
What is Oxy-Fuel Welding?
Oxy-fuel welding uses a flame produced by burning oxygen and a fuel gas (such as acetylene) to melt and fuse metal. It’s commonly used for cutting and welding metals like steel and brass.
What is Laser Welding?
Laser welding uses a focused laser beam to melt and fuse metals. It provides high precision, minimal heat input, and is often used in industries like aerospace and automotive.
What is Electron Beam Welding?
Electron beam welding uses a focused beam of high-energy electrons to melt and join metals. It occurs in a vacuum and is ideal for precise, deep welds in materials like titanium and stainless steel.
What are the advantages of welding?
Strong Joints: Produces durable and high-strength bonds between materials.
Versatile: Can be used on a wide range of materials (metals, plastics).
Cost-effective: Often less expensive than other methods like bolting or riveting.
No Need for Fasteners: Eliminates the need for additional parts like bolts or screws.
Portable: Welding equipment can be used in various locations, including on-site repairs.
What are the disadvantages of welding?
Skill Requirements: Requires skilled operators for quality results.
Health Risks: Exposure to fumes, UV radiation, and heat can be hazardous.
Distortion: High heat can cause warping or distortion in the materials.
Not Suitable for All Materials: Some materials (e.g., certain plastics) are difficult to weld.
Cost of Equipment: High-quality welding machines can be expensive.
What is TIG Welding?
Full Name: Tungsten Inert Gas Welding
Process: Uses a non-consumable tungsten electrode to produce the weld. An inert gas (like argon) shields the weld from contamination.
Advantages: Provides high precision, clean welds, and works well on thin materials.
Applications: Used in industries like aerospace, automotive, and for welding stainless steel and aluminum.
What is Stick Welding?
Full Name: Shielded Metal Arc Welding (SMAW)
Process: Uses a consumable electrode coated in flux, which melts to form the weld. The flux creates a shielding gas to protect the weld.
Advantages: Simple, portable, and works well in outdoor conditions.
Applications: Commonly used for construction, shipbuilding, and heavy-duty repairs.
What is MIG Welding?
Full Name: Metal Inert Gas Welding
Process: Uses a continuously fed consumable wire electrode and an inert gas to shield the weld.
Advantages: Faster than TIG and Stick welding, easy to learn, and produces clean welds.
Applications: Widely used in manufacturing, automotive, and fabrication work.
