1 / 20

Oxyfuel Cutting

Oxyfuel Cutting. Chapter 14. Objectives . Identify the various components of an oxyfuel cutting outfit. Cite the maximum safe working pressure used for acetylene gas. Objectives . Describe the function of each component of an gas cutting outfit.

tanith
Download Presentation

Oxyfuel Cutting

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Oxyfuel Cutting Chapter 14

  2. Objectives • Identify the various components of an oxyfuel cutting outfit. • Cite the maximum safe working pressure used for acetylene gas.

  3. Objectives • Describe the function of each component of an gas cutting outfit. • Correctly select the proper cutting tip and working pressure for a particular thickness of steel. • Distinguish between a well cut surface and a poorly cut surface and be able to adjust where necessary to perform a good cut.

  4. Cutting Torch

  5. Oxygen control • Velocity • Oxygen pressure • Amount of oxygen • Orifice size

  6. Torch movement • Away from welder not toward • No side to side is needed

  7. Right to left best for right-handed welders Whatever is most comfortable left to right best for left-handed welders Right to left or left to right?

  8. Thin 1/8” or less Use a small tip Slant tip to 15-20° Thick Perpendicular both ways Use a larger tip Cutting Angle

  9. Slag Stream • Less then 1” should go directly through • Thicker then 1” some drag is desirable • To ensure proper oxygen consumption

  10. Drag • The distance between the entry and exit point of the oxygen jet

  11. Causes of Excessive Drag • Incorrect flame adjustment • Oxygen cutting pressure low • Traveling too fast

  12. Effect of Excessive Drag • Not cutting completely through the metal • Cerates turbulence and makes kerf rough

  13. Bell-mouthed kerf • Too much oxygen cerates a bell-mouthed kerf

  14. Piercing • Requires more heat • Use 1 size larger tip • Metal must be heated completely though

  15. Cut Quality

More Related