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Fronius

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Interview Questions and Answers

Updated 5 Feb 2024

Q1. What is the major parameter settings in power source for aluminium welding?

Ans.

The major parameter settings in power source for aluminium welding include voltage, current, and pulse settings.

  • Voltage setting is crucial for controlling heat input and penetration in aluminium welding.

  • Current setting determines the amount of heat generated during the welding process.

  • Pulse settings help in controlling the arc stability and reducing heat input.

  • Other important parameters include travel speed, shielding gas flow rate, and electrode type.

  • Example: Voltage - 18-22...read more

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Q2. Why are we doing ageing process in maraging steel??

Ans.

Ageing process in maraging steel is done to increase strength and hardness through precipitation hardening.

  • Improves strength and hardness of the steel

  • Enhances the mechanical properties

  • Increases the resistance to wear and corrosion

  • Allows for the formation of intermetallic compounds

  • Helps in achieving desired properties for specific applications

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Q3. How to do aluminium welding in Gtaw process

Ans.

Aluminium welding in Gtaw process involves using a Tungsten electrode to create an arc between the electrode and the workpiece, while shielding with inert gas.

  • Clean the aluminium surface thoroughly to remove any contaminants

  • Use AC current for better penetration and cleaning action

  • Select appropriate filler material compatible with aluminium

  • Maintain a consistent travel speed and arc length for quality welds

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Q4. What is meant by Ageing process?

Ans.

Ageing process refers to the gradual deterioration of physiological functions over time.

  • Ageing process is a natural biological phenomenon that occurs in all living organisms.

  • It involves a decline in physical and mental capabilities as well as an increased susceptibility to diseases.

  • Factors such as genetics, lifestyle choices, and environmental influences can impact the ageing process.

  • Examples of ageing-related changes include wrinkles, decreased muscle mass, and cognitive dec...read more

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Q5. What is your experience on welding??

Ans.

I have 5 years of experience in welding various materials such as steel, aluminum, and stainless steel.

  • Certified in MIG, TIG, and stick welding techniques

  • Experience in reading and interpreting blueprints and welding symbols

  • Skilled in operating welding equipment and tools

  • Knowledge of different welding processes and safety procedures

  • Worked on projects involving structural welding and fabrication

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Q6. Strength of materials

Ans.

Strength of materials refers to the ability of a material to withstand applied forces without failing.

  • Strength of materials is a fundamental concept in engineering and construction.

  • It is important to understand the strength properties of materials to ensure the safety and reliability of structures.

  • Factors that affect the strength of materials include material composition, manufacturing process, and environmental conditions.

  • Examples of materials with high strength include stee...read more

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