In welding process which one is NOT the one of methods of st

In welding process, which one is NOT the one of methods of stress relieving? Surface Rolling Peening Hammering Increase the cooling rate What brazing process is this? Diffusion Brazing Induction Brazing Resistance Brazing Torch Brazing In brazing method, Is a process uses electron or laser beam as heat source. High-Energy beams Induction Brazing Braze Welding Infrared Brazing In Brazing, is a process uses a high intensity quartz lamp or microwave as heat source. Infrared Brazing Braze Welding High-Energy beams Induction Brazing In Brazing design consideration, which one of each 1-2-3 (i.e. left or right) is better for each example? left - right - left left-left-right right - right - left right - left - right

Solution

17) Answer : d. Increasing the cooling rate. While rolling, peening and hammering are used in different scenarios to relieve stress, on the other hand increasing the cooling rate will contirbute to higher internal stress buildup.

18) Answer : b. Induction brazing. As it is visible in the figue that some kind of coil is in use and induction brazing is process where copper coils are used to induce heat to achieve the Brazing.

19) Answer : a. High energy Beams. Laser And Electron Beams are classified as high energy beams and used in welding as well as Brazinf process.

20) Answer : a. Infra-red Brazing. Quartz lamp and Microwave is a source of Infra-red waves which in turn heat the Brazing material for the brazing process.

21) Answer : d. right - left -right. Brazing joints are stronger and effective when some capillary effect takes place between the two parts being brazed. The more surface area covered by area brazing filler seeping in to the gaps the better is the braze joint.

Hence as evident from the figures in

case 1: On the right side the shaft has higher inner contact surface compared to left side.

Case 2: On the left side the lapping contact surface is higher compared to the butting surface on right side.

Case 3: On the right side there is more surface contact and hence better braze joint compared to the left side.