Matches in SemOpenAlex for { <https://semopenalex.org/work/W2895966085> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2895966085 abstract "Until now, laser drilling has been achieved by pulsed beams through percussion, trepanning, and the combination of both. Problems often encountered for the production of cooling holes in aerospace nickel alloys include recast layer formation, tapering, hole repeatability (particularly when percussion drilling is used) and back wall strike for hollow components. This paper reports for the first time, a new laser drilling technique based on a continuous wave 1 kW single mode fibre laser. Vertical holes are drilled in nickel based super-alloy plates using a continuous wave (CW) and pulsed mode drilling methods. Zero tapered holes with negligible recast layer formation and free from micro-cracks are demonstrated when drilling in both single crystal CMSX-4 and Hayness 230 materials under the CW mode. The hole diameter has been reduced to less than 0.2 mm for a material thickness of 2 mm. The drilling and breakthrough time are measured using photodiode and high speed imaging techniques as 2.2 and 0.8 ms (100-200 times faster than standard Nd:YAG laser drilling). Process monitoring by a high speed camera images and the photodiode also revealed that material removal is characterized by a bulky downward ejection after the hole breakthrough. Elimination of the upward material ejection with a CW pulse provides less erosive flow on the walls. Unique process mechanisms leading to high speed production of recast free parallel holes with the high brightness fibre laser are presented.Until now, laser drilling has been achieved by pulsed beams through percussion, trepanning, and the combination of both. Problems often encountered for the production of cooling holes in aerospace nickel alloys include recast layer formation, tapering, hole repeatability (particularly when percussion drilling is used) and back wall strike for hollow components. This paper reports for the first time, a new laser drilling technique based on a continuous wave 1 kW single mode fibre laser. Vertical holes are drilled in nickel based super-alloy plates using a continuous wave (CW) and pulsed mode drilling methods. Zero tapered holes with negligible recast layer formation and free from micro-cracks are demonstrated when drilling in both single crystal CMSX-4 and Hayness 230 materials under the CW mode. The hole diameter has been reduced to less than 0.2 mm for a material thickness of 2 mm. The drilling and breakthrough time are measured using photodiode and high speed imaging techniques as 2.2 and 0.8 ms (100-20..." @default.
- W2895966085 created "2018-10-26" @default.
- W2895966085 creator A5007240667 @default.
- W2895966085 creator A5015264686 @default.
- W2895966085 creator A5038011627 @default.
- W2895966085 creator A5052946068 @default.
- W2895966085 date "2010-01-01" @default.
- W2895966085 modified "2023-09-27" @default.
- W2895966085 title "Continous wave fiber laser keyhole drilling for the production of zero tapered, low recast holes in Ni-alloys" @default.
- W2895966085 doi "https://doi.org/10.2351/1.5061933" @default.
- W2895966085 hasPublicationYear "2010" @default.
- W2895966085 type Work @default.
- W2895966085 sameAs 2895966085 @default.
- W2895966085 citedByCount "0" @default.
- W2895966085 crossrefType "proceedings-article" @default.
- W2895966085 hasAuthorship W2895966085A5007240667 @default.
- W2895966085 hasAuthorship W2895966085A5015264686 @default.
- W2895966085 hasAuthorship W2895966085A5038011627 @default.
- W2895966085 hasAuthorship W2895966085A5052946068 @default.
- W2895966085 hasConcept C120665830 @default.
- W2895966085 hasConcept C121332964 @default.
- W2895966085 hasConcept C159985019 @default.
- W2895966085 hasConcept C17163034 @default.
- W2895966085 hasConcept C191897082 @default.
- W2895966085 hasConcept C192562407 @default.
- W2895966085 hasConcept C19474535 @default.
- W2895966085 hasConcept C25197100 @default.
- W2895966085 hasConcept C2776139624 @default.
- W2895966085 hasConcept C2778386843 @default.
- W2895966085 hasConcept C2780997931 @default.
- W2895966085 hasConcept C2984025587 @default.
- W2895966085 hasConcept C49040817 @default.
- W2895966085 hasConcept C519885992 @default.
- W2895966085 hasConcept C520434653 @default.
- W2895966085 hasConcept C751236 @default.
- W2895966085 hasConcept C99568719 @default.
- W2895966085 hasConceptScore W2895966085C120665830 @default.
- W2895966085 hasConceptScore W2895966085C121332964 @default.
- W2895966085 hasConceptScore W2895966085C159985019 @default.
- W2895966085 hasConceptScore W2895966085C17163034 @default.
- W2895966085 hasConceptScore W2895966085C191897082 @default.
- W2895966085 hasConceptScore W2895966085C192562407 @default.
- W2895966085 hasConceptScore W2895966085C19474535 @default.
- W2895966085 hasConceptScore W2895966085C25197100 @default.
- W2895966085 hasConceptScore W2895966085C2776139624 @default.
- W2895966085 hasConceptScore W2895966085C2778386843 @default.
- W2895966085 hasConceptScore W2895966085C2780997931 @default.
- W2895966085 hasConceptScore W2895966085C2984025587 @default.
- W2895966085 hasConceptScore W2895966085C49040817 @default.
- W2895966085 hasConceptScore W2895966085C519885992 @default.
- W2895966085 hasConceptScore W2895966085C520434653 @default.
- W2895966085 hasConceptScore W2895966085C751236 @default.
- W2895966085 hasConceptScore W2895966085C99568719 @default.
- W2895966085 hasLocation W28959660851 @default.
- W2895966085 hasOpenAccess W2895966085 @default.
- W2895966085 hasPrimaryLocation W28959660851 @default.
- W2895966085 hasRelatedWork W1978398485 @default.
- W2895966085 hasRelatedWork W1984706260 @default.
- W2895966085 hasRelatedWork W2001206609 @default.
- W2895966085 hasRelatedWork W2014098772 @default.
- W2895966085 hasRelatedWork W2022789534 @default.
- W2895966085 hasRelatedWork W2023344903 @default.
- W2895966085 hasRelatedWork W2037512298 @default.
- W2895966085 hasRelatedWork W2186646309 @default.
- W2895966085 hasRelatedWork W2204415261 @default.
- W2895966085 hasRelatedWork W2300357580 @default.
- W2895966085 hasRelatedWork W2317537128 @default.
- W2895966085 hasRelatedWork W2391415992 @default.
- W2895966085 hasRelatedWork W2587407440 @default.
- W2895966085 hasRelatedWork W2604889433 @default.
- W2895966085 hasRelatedWork W2606774361 @default.
- W2895966085 hasRelatedWork W2810434484 @default.
- W2895966085 hasRelatedWork W2895203085 @default.
- W2895966085 hasRelatedWork W2895322485 @default.
- W2895966085 hasRelatedWork W2895787358 @default.
- W2895966085 hasRelatedWork W2896033835 @default.
- W2895966085 isParatext "false" @default.
- W2895966085 isRetracted "false" @default.
- W2895966085 magId "2895966085" @default.
- W2895966085 workType "article" @default.