21 Which statement is false for Laser beam welding?Laser beams can be focused via optical lenses and mirrorsb) LBW needs vacuum chamberC)LBW normally performed with shielding gases to prevent oxidationd)LBW uses photon beam to weld workpieces

Answered: Image /qna-images/answer/f6fc1db2-641a-4363-906b-db5a7cf231ef.jpg

Answered: 21 Which statement is false for Laser…

Engineering

Mechanical Engineering

21 Which statement is false for Laser beam welding?

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter9: Related Cutting Processes

Section: Chapter Questions

Problem 13R: What may occur if an SMA welding machine has below minimum arc voltage for air carbon arc gouging?

See similar textbooks

Related questions

Q: 7) Consider the following statements regarding Laser welding: 1: Conduction mode welding is normally…

A: Conduction mode welding has a power density that is just enough to cause the metal to melt. The weld…

Q: a). Explain the three types of flames produced in the gas welding process.

A: Solution: Note: Dear Student! As per our guidelines, we are only allowed to answer a single…

Q: What are the two methods of mechanical travel for SA welding?

Q: What are the main reasons for using a coating in all arc welding rods and not used in the case of…

A: The reasons for using a coated electrode in arc welding

Q: Stick" welding is a term sometimes" applied when referring to which one of :the following processes…

A: Flux Shielded Arc Welding or Stick Welding is a manual arc welding process that uses consumable…

Q: 8) Which one of the following statement is - not correct about ultra short pulse laser welding? a)…

A: The given problem is based on welding technique in manufacturing engineering.

Q: 1. List the equipment and PPE needed for SMAW. 2. What role does electrode coating play in producing…

A: Shield metal arc welding (SMAW) SMAW is the manual arc welding process that uses a consumable…

Q: 33- Which one of the followings is not used for heating the joining materials for soldering and…

Q: several models of electric welding products

Q: What are the parameters of inert gas welding process?

A: The parameters for the inert gas welding process are as follows: Welding Current Welding Voltage…

Q: 1) The temperature range in plasma arc welding is of the range? O 35000-40000°F O 40000-45000'F…

Q: 3- What are the main classes of welding? 4- With drawing explain flam different types, what type is…

A: There are three primary flame types: neutral (balanced), excess acetylene (carburizing), and excess…

Q: Question No 15. Which of these method is suitable for joining an air tight or liguid tight container…

A: Option d is correct.

Q: What are the different hazard in using Arc and Oxy-acetylene welding?

Q: 15)In which type of resistance welding, capacitor-discharge is used? Butt welding OSeam welding O…

A: Out of all the four given options, capacitor-discharge is used in Percussion welding. In which, the…

Q: 12- Brazing and soldering are attractive comparing to welding for some situations: I. the metals…

A: It is required to determine in which situation brazing and soldering is used

Q: 7) Which one of the following welding process referred as a dielectric welding process?

A: Dielectric welding: It is a welding process used to join the sheets of polar thermoplastic material…

Q: What is the function of flux in submerged arc welding?a) To completely cover the welded zone b) To…

A: In the submerged arc, welding flux acts as an oxygen barrier by creating a coating for the surface…

Q: Arc welding can be done without applying any external pressure.

A: Arc welding can be done without applying any external work. Answer: True

Q: How to do a basic shielded metal arc welding?

A: In shielded metal arc welding (SMAW), an arc between a covered electrode and a weld pool is used to…

Q: What is the approximately temperature of arc needed for arc welding? O 600-1000°C O 6000-8000°C O…

A: Solution:

Q: - If the welding process is to be changed from MMAW to MIG/MAG, do you need to re-qualify the…

A: GMAW utilizes a consumable electrode continuously supplied from a wire spool. So no intermittent…

Q: 2) Which one of the following statement is .. not pertaining to ultrasonic welding process?

A: Ultrasonic welding: It is a solid state welding process in which two materials are rub against each…

Q: In order to prevent oxidation and retain molten metal in stud welding which of the following is…

A: The given question is on the concept of stud welding

Q: Describe FIVE (5) major hazards and precaution measures of Arc Rays and Spatter during performing…

A: Solution: Five major hazards and precaution measures of Arc Rays and Spatter during performing Arc…

Q: The major difficulty during welding of aluminum

A: Given; The major difficulty during welding of aluminium is;Where, Welding process of aluminium is;…

Q: 5) The type of environment that offers best protection to the molten weld pool during fusion welding…

A: There are many types of fusion welding such as, shield metal arc welding, plasma arc welding,…

Q: How is a flux cored arc welding (FCAW) electrode wire different from a gas metal arc welding (GMAW)…

A: It is required to differentiate between FCAW and GMAW electrode

Q: 5) Which one of the following options is true about friction stir welding? Fine microstructure is…

A: Solution:

Q: In an arc welding process, which of the following parameters has most influence on the material…

A: Explanation Marangoni effect: Due to marangoni effect thetransfer of mass take place at the…

Q: Submerged Arc Welding

A: Submerged-arc welding (SAW) is a common arc welding process that involves the formation of an arc…

Q: B. In arc welding process. What role does electrode coating play in producing a satisfactory weld?

A: The arc welding process is a special type of process in which arc is used to heat and melt the metal…

Q: What can happen if welding standards are lax?

A: A weld can be laid out, conducted, and evaluated according to specific guidelines defined by…

Q: 9) Which of the following joining- techniques are referred as dual shield welding process? O PAW O…

Q: 16)The ratio of aluminum and iron oxide in thermit welding is: O1.5:1 O 2:1 O 2.5:1 O 3:1

A: As per given question We have find ratio between aluminium and iron in thermit welding

Q: 10)Which of the followings is true for LASER welding process? O It is a high heat input process High…

A: Laser Beam Welding is a process is a fusion welding process in which two target metal pieces are…

Concept explainers

Joining Processes

It is the process of permanent or temporary joining of two metal pieces with the help of heat or pressure. Two metal parts are assembled by applying an energy source for the formation of a single unit. The obtained joined metals cannot be fragmented easily with the application of any force.

Question

21 Which statement is false for Laser beam welding?
Laser beams can be focused via optical lenses and mirrors
b) LBW needs vacuum chamber
C)
LBW normally performed with shielding gases to prevent oxidation
d)
LBW uses photon beam to weld workpieces

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

12 Brazing and soldering are attractive comparing to welding for some situations: I. the metals have poor weldability II. only same metals are to be joined III. the intense heat of welding may damage the components being joined IV. the geometry of the joint is not suitable to any of the welding methods V. high strength is a requirement. a) I-II-II b) I-III-IV 1-II-III-IV-V 1-11 Only !
8) Which one of the following statement is - not correct about ultra short pulse laser welding? a) Ultra fast b) Energy per pulse from nJ to mJ c) Average power varies from 10W to 1000W d) Pulse preparation frequency vary up to 100MHZ
10)Which of the following statements are pertaining to laser transmission welding? I. Fast cycle time II. Precise energy control II. High mechanical stress IV. Weak welds a) I and II b) I and IV c) Il and III d) III and IV
10 Mark the correct statement about Gas Metal Arc Welding. a) Argon gas is used in MAG Welding b) TIG Welding uses a copper electrode MAG is used in the welding of plain carbon and low alloy steels CO2 gas is used in TIG Welding
7) Consider the following statements regarding Laser welding: 1: Conduction mode welding is normally used for welding thin sheets, whereas keyhole mode welding is used for much thicker sections. II: Vapour pressure from the hot metal helps to keep the keyhole open during keyhole mode laser welding. a. Statement I is correct, and statement II is incorrect. b. Statement Il is correct, and statement I is incorrect. c. Both statements I and Il are correct. d. Both statements I and Il are incorrect.
2) Which one of the following statement is .. not pertaining to ultrasonic welding process? a) Welding cycles about 1 second b) Amplitude of vibration is about 0.05mm c) Frequency of vibration is ranging from 20 to 70 KHz d) It is mainly used for joining of amorphous material
9) State true or false "Electro-slag welding offers better weld properties of medium carbon steel plate weld joints as compared to electro-gas welding in terms of grain structure" True False
Describe the spot welding process using a GMA welder.
List the three types of light that may be present during welding.
18) Which of the following welding processes does not use consumable electrodes? a. Gas Welding b. Soldering c. TIG d. Submerged Arc Welding
QUESTION 16 What is the approximately temperature of arc needed for arc welding? O 600-1000°C O 6000-8000°C O 5000-6000°C O 2000-4000°C Click Save and Submit to save and submit. Click Saue All Answers to save all answers.
3) Why is friction stir welding known as "green technology"? OIt uses a green coloured tool O Due to its energy efficiency and environmental friendliness O Due to its process efficiency O It can be used to join dissimilar materials