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because of the difference in physical characteristics of thermoplastics and metals, there are corresponding differences between welding techniques for metals and thermo-plastics.
in the welding of metal, welding rod and parent material become molten and fuse into the required bond to form welded joints.
this is not in thermo plastics, because they are poor heat conductors , they are difficult to heat uniformly ..
so diifferent methods are used to weld plastics...
What else can I help you with?
How welding can be defined?
welding is a process which joins two dissimilar metals........ Actually it is more than that. Welding is a process that involves the application of heat to either add more material or join pcs. together. It is not used just for metals (dissimilar or not) but glass, plastics and more. The pcs. to be welded must melt in order for it to be called welding. Soldering, silver soldering, and brazing are comparable to glueing.
What is the difference between fusion and forge welding?
Fusion welding involves melting the base metals to create a joint, typically using a heat source like an electric arc or a flame, allowing the molten metal to fuse together upon cooling. In contrast, forge welding is a solid-state process that joins metals by heating them to a plastic state and then hammering or pressing them together, without melting the material. Fusion welding often requires filler material, while forge welding relies on the inherent properties of the metals being joined. Overall, the key difference lies in the methods of heating and the state of the materials during the joining process.
Is spot welding is fusion welding?
Yes, no filler metal is used. Often used on thin metals, the metals are pressed together and electricity is used to heat the metals to a state they melt slightly and fuse together.
Which type of welding is permanent welding?
Permanent welding refers to processes that create a strong, lasting bond between materials, typically metals. Common types of permanent welding include arc welding, MIG (Metal Inert Gas) welding, and TIG (Tungsten Inert Gas) welding. These methods fuse materials together at a molecular level, resulting in a joint that is generally as strong as or stronger than the base materials. Permanent welding is widely used in construction, manufacturing, and repair applications due to its durability and strength.
What is the purpose of the arc welding?
Welding is done to weld materials by operating a welding machine. Many industries such as Shipyard, Robotics will be needing welding applications. The applications include extending a rod eor pipe, joining two materials etc. My brother is doing a welding course at Weldtech Training Inc at Ontario. He is very much fond of welding. It gives someones great opportunities to work in several fields.
What is the industrial use of acetylene?
Acetylene uses:- welding- metals cutting- feedstock for plastics and acrylic products fabrication
What is the difference between welding engineering and welding technology?
Welding technology is the study and application of the many processes of joining various metals. Welding Engineering is a far deeper study and application into the individual characteristics of each metal. A welding engineer will decide what metals are used in a project and what process to weld those metals. Weld techs will usually just receive blue prints and weld as instructed. Welding technology is usually a 2 year degree, and Welding Engineering is a 4+year degree.
How welding can be defined?
welding is a process which joins two dissimilar metals........ Actually it is more than that. Welding is a process that involves the application of heat to either add more material or join pcs. together. It is not used just for metals (dissimilar or not) but glass, plastics and more. The pcs. to be welded must melt in order for it to be called welding. Soldering, silver soldering, and brazing are comparable to glueing.
What is the difference between fusion and forge welding?
Fusion welding involves melting the base metals to create a joint, typically using a heat source like an electric arc or a flame, allowing the molten metal to fuse together upon cooling. In contrast, forge welding is a solid-state process that joins metals by heating them to a plastic state and then hammering or pressing them together, without melting the material. Fusion welding often requires filler material, while forge welding relies on the inherent properties of the metals being joined. Overall, the key difference lies in the methods of heating and the state of the materials during the joining process.
What is the difference between soldering and welding techniques?
Soldering and welding are both methods used to join metal pieces together, but they differ in the temperatures they use. Soldering uses lower temperatures and a filler material called solder, while welding uses higher temperatures to melt the base metals together directly.
What's the difference between soldering and welding techniques?
Soldering and welding are both methods used to join metal pieces together, but they differ in the temperatures they use. Soldering uses lower temperatures and a filler material called solder, while welding uses higher temperatures to melt the base metals together.
What is the difference between soldering and welding?
Soldering and welding are both methods used to join metal pieces together, but they differ in the temperatures used and the materials involved. Soldering uses a lower temperature and a filler material called solder, while welding uses a higher temperature to melt the base metals and fuse them together.
What is the difference between welding and fusing?
Welding is the fusing of to metals, but the term "fusing" in a welding shop is the melting together of to materials without using filler rod. Usually done with a TIG Machine. The process results in a small weld, that does not need to be ground flush, because it already is. The only problem is that a "fused" weld isn't as strong.
What is the difference between arc welding and resistance welding?
Arc welding uses an electric arc to melt and join metal pieces together, while resistance welding uses heat generated by the resistance to electric current flow between two metal pieces to join them together. Arc welding is more versatile and can be used for various types of metals, while resistance welding is more suited for high-speed production and is commonly used in automotive and appliance manufacturing.
What is difference between oxyacetylene welding and electric arc welding?
Oxyacetylene welding uses a flame produced by burning a mixture of oxygen and acetylene gas to melt and join metals, making it suitable for welding various materials, including steel and aluminum. In contrast, electric arc welding generates heat through an electric arc formed between an electrode and the workpiece, which can be used for thicker materials and offers faster welding speeds. While oxyacetylene welding is often used for repair work and thinner sections, electric arc welding is more commonly used in industrial applications for its efficiency and versatility.
How does oxidation affect the quality of welding?
Oxidation can negatively impact the quality of welding by weakening the bond between the metals being joined. This can lead to a weaker and less durable weld, as well as potential defects and imperfections in the final product. It is important to prevent oxidation during the welding process to ensure a strong and reliable bond between the metals.
What is the meaning of the phrase root opening?
In welding, the separation at the joint root between the base metals. This will, in part, determine the type, style and amount of welding medium required.
