Control of penetration depth fluctuations in single-mode fiber laser welds
Source abstract
Abstract
Circular focus spot oscillation was investigated as a means of suppressing penetration spiking and related defects in partial penetration single-mode fiber laser welds. Initially, partial penetration welds in stainless steel square-butt joints with linear travel were made to quantify weld and weld spiking characteristics. Then, welds were made with linear travel and superimposed circular oscillations having a range of angular frequencies and diameters. Oscillation parameter ranges which significantly decreased penetration spiking were identified. Additional tests quantified the ability of fiber mode laser welding with circular oscillation to accommodate part alignment mismatch errors.
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Research context
OpenAlex topics: Advanced Fiber Optic Sensors · Laser Material Processing Techniques · Welding Techniques and Residual Stresses
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Welding Engineering Program, Laboratory for Multiscale Processing and Characterization, The Ohio State University, 1248 Arthur E Adams Drive, Columbus, Ohio 43221
Honeywell FM&T, 2000 E 95th St., Kansas City, Missouri 64131
References (22)
Show source-provided references
1. IPG photonics successfully tests world’s first 10 kilowatt single-mode production laser
2. Role of strong focusability on the welding process10.2351/1.2795748 ↗
3. Analysis of penetration depth fluctuations in single-mode laser welds10.1088/0022-3727/42/11/115501 ↗
4. Evaporation-capillary instability in a deep vapour-gas cavity10.1070/QE1994v024n02ABEH000037 ↗
5. Hydrodynamics aspects of the channel formation by a CO2 laser beam penetration deep into a liquid10.1134/1.1565629 ↗
6. Experimental study of the dynamical coupling between the induced vapour plume and the melt pool for Nd-Yag CW laser welding10.1088/0022-3727/39/2/023 ↗
7. Mechanism of keyhole formation and stability in stationary laser welding10.1088/0022-3727/35/13/320 ↗
8. Control of chaos in laser-induced vapor capillaries10.2351/1.1585084 ↗
9. Control of spiking in partial penetration electron beam welds
10. Prediction of electron-beam welding spiking tendency
11. Penetration mechanisms of electron beam welding and the spiking phenomenon
12. 1993 · 35
13. Electron Beam welding study on U-Nb-Zr alloy: final report
14. Effects of electron beam oscillation techniques on solidification behavior and stress rupture properties of inconel 718 welds10.1179/174329307X159838 ↗
15. A characterization of pulsed electron-beam welding parameters
16. Optimal parameters for low and high voltage electron beam welding of AZ series magnesium alloys and mechanism of weld shape and pore formation10.1179/174329307X227274 ↗
17. Coupled effect of heat input and beam oscillation on mechanical properties of alloy 718 electron beam weldments10.1179/174329306X84337 ↗
18. 1993 · 53
19. 2002
20. High-speed simultaneous observation of plasma and keyhole behavior during high power CO2 laser welding: Effect of shielding gas on porosity formation10.2351/1.1324717 ↗
21. 1971 · 142
22. 1996 · 1