ENGINEERING TECH
6 6 Benefits of Hybrid Laser-Arc
REVIEW
INNOVATION
Welding
ybrid laser-arc welding (HLAW) product management in the flexible process synergy. “We can travel with the
combines a laser beam with an automation department of ESAB Welding. arc much faster than we could if we didn’t
Helectric welding arc. It’s part of the He explained some of the payoffs of have a laser beam. That’s how we’re able
larger laser welding category and offers hybrid systems, saying, “We’re really to go so fast with the hybrid process,” he
numerous advantages over traditional using the laser to achieve penetration. said.
processes. Here are some of them. Normally, if you want to affect penetration
in a MIG weld, you have to add more 2. Improved Safety When Combined
1. Process Optimization amperage.” With Automation
Opportunities He clarified, “By using the laser to Welding professionals must receive
Although people can theoretically do the penetrating, we can dial back training and wear the correct equipment
combine lasers with any arc welding the amperage on the MIG and use the to reduce the inherent risks. Arc flash
process, they frequently use them with smallest weld that our structure will allow incidents are among those threats. The
metal inert gas (MIG) techniques. By for engineering purposes. So the laser associated temperatures can reach
doing so, they find numerous ways to allows us to optimize the MIG.” 35,000 degrees Fahrenheit, making them
improve their older processes. Hansen also spoke of how the laser severe burn hazards. Workers can suffer
Ed Hansen is the director of global beam stabilizes the arc, bringing better those injuries even if they are 10 feet
98 | MAY 2022
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ENGINEERING TECH
REVIEW INNOVATION
away from the incident. 4. Diversity of Welding Results They found that the new material
There’s no single way to reduce the People who choose hybrid laser-arc offered similar strength and toughness
dangers, but automation could help. welding for their applications can use but was less expensive. Moreover,
That’s because it could keep workers two main types. The conduction method their data showed that this updated
farther away from some of the most features a comparatively lower energy approach resulted in a total welding
significant threats. Hybrid laser-arc density and a laser beam spot that’s larger time that was less than half that
welding is a good fit for such solutions. in diameter. It’s a good choice for highly associated with 304 stainless steel.
In one example, an Italian shipbuilding visible welds, such as those associated The researchers cited these advantages
company purchased an automated with signs. as some that would help companies
production line totaling more than 984 However, there’s also the keyhole stay competitive or address current
feet in length. It included several robotic method. It has a higher energy density limitations.
stations that welded T-beams onto thin- and a smaller laser beam. This approach
plate flat panels. allows people to weld stacked pieces 6. Overall Quality Improvements
Industrial sectors are increasingly that previously required methods like When companies begin using hybrid
adopting robots to help humans. In one resistance spot welding. People can laser-arc welding, their leaders often see
warehouse setting, a robot can pick use keyhole HLAW to achieve deep- notable, positive impacts on the quality
800 boxes per hour. That setup reduces penetration welds on thick materials with of the output. For example, HLAW can
the repetitive movements that could a single pass. reduce the need for rework and lower
cause fatigue and mishaps. Welders That advantage reduces the likelihood the scrap rate.
can experience overexertion during of welding defects. It also removes Additionally, HLAW is more efficient
their shifts, too, particularly when doing the need to chamfer the joints. When than other types of welding and it
overhead or vertical welds. Automation evaluating the keyhole and conduction becomes especially so when applying
doesn’t remove the need for human input, methods, people should keep in mind that automation. However, if decision-makers
but it could reduce welding accidents. there’s no universally “best” option. It all primarily seek to target quality by
depends on the desired outcome for the adopting hybrid laser-arc welding, they
3. Minimized Thermal Distortion particular parts of the welding project. should choose some specific metrics to
Issues track throughout the implementation.
Another beneficial aspect of hybrid laser- 5. Enhanced Business Doing that helps people stay focused
arc welding is its reduced heat input. That Competitiveness on goals. Setting expectations also
characteristic leads to decreased thermal Many company leaders discover that makes it easier to see whether HLAW
distortion. Lowering the incidence rate of hybrid laser-arc welding can help them is getting the anticipated results or if
thermal distortion has been particularly overcome obstacles to become more it’s necessary to make further tweaks
advantageous in industries that use resilient in challenging marketplaces. to processes. Getting input from the
welding to join large pieces. Correcting As you may have already realized from welders using the method is also
issues in those cases causes a significant a previous example here, HLAW is an important, especially for learning the
increase in manual labor. often-chosen option in the shipbuilding pros and cons compared to other
The automotive industry is one sector. fabrication methods previously used.
sector that often utilizes HLAW. More In one case, a team wanted to improve
specifically, the method works well for the use of welding on low-temperature Are You Ready to Use Hybrid Laser-
joining high-strength sheets that go into steel to create liquid natural gas tanks Arc Welding?
vehicle bodies or for brazing roof panels. for marine vessels. They determined that Hybrid laser-arc welding is not the best
Many popular types of steel used in hybrid laser-arc welding was a good option for every project. However, the
the automotive industry have a strength avenue to pursue for several reasons. six perks detailed here will help you
range of 980 to 1,500 megapascals. One benefit was a 10% reduction in the start appreciating why decision-makers
Hybrid laser-arc welding offers both high production time. Additionally, HLAW often become interested in using it.
energy and efficiency that can limit the enabled the group to make the tanks out You may need to significantly alter your
deterioration of material in the heat- of 30-millimeter-thick, high-manganese current welding setup to move forward
affected zone (HAZ) when welding these steel rather than continuing to use 304 with HLAW. However, you may find the
steels. stainless steel. payoffs are well worth it.
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104 | MAY 2022
PRODUCTS ENGINEERING
SHOWCASE REVIEW
HIGH SPEED ROTARY TABLE BEARINGS
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MAY 2022 | 105
AD INDEX
COMPANY NAME PG. NO. COMPANY NAME PG. NO. COMPANY NAME PG. NO.
A FRONIUS INDIA PVT. LTD. 35 MARVEL GLOVES
INDUSTRIES 97
A.C. AUTOMATION 99 G
MENNEKES ELECTRIC 61
AGNI CONTROLS 18 GLEASON WORKS 23 INDIA PVT. LTD.
(INDIA) PRIVATE LIMITED
AMI POLYMER PVT. LTD. 67 MGM-VARVEL POWER 41
GLOBE-TECH TRANSMISSION PVT LTD
AMTEX - 2022 103 ENGINEERING 96
EXPO - 2022 O
ATQ METRO 7
GUARNIFLON OEN INDIA LIMITED 15
INDIA PVT LTD 55
B P
H
BAKER GAUGES INDIA 19 PANAM ENGINEERS LTD. 87
PRIVATE LIMITED HILSCHER INDIA
PVT. LTD. 2 PILZ INDIA PVT. LTD. BACK PAGE
BALAJI SWITCHGEARS 53
HRS PROCESS 77 PIPRO LAMINAIR
SYSTEMS LTD. PVT. LTD. 13
BECKHOFF AUTOMATION FRONT
PVT. LTD. GATEFOLD I PRECISION MOTION
INDUSTRIES, INC. ( PMI ) 69
BETTINELLI IGUS (INDIA) PVT. LTD. 85
AUTOMATION 45 PRIMA EQUIPMENT 37
COMPONENTS PVT. LTD. INTEC - 2022 101
PROFESSIONAL
IPMA EXPO - 2022 102 ENGINEERING 79
C
CARL ZEISS INDIA 25 J PROSTARM INFO 59
SYSTEMS LTD
(BANGALORE) PVT. LTD.
JAY JALARAM 89
D EXTRUSIONS Q
JINDAL STEEL & QVI INDIA PVT. LTD. 75
DECELER VIBROTEK POWER LTD. 49
CONTROLS PVT. LTD. 65 R
JYOTI CERAMIC 1
DELTA PLUS GROUP 9 INDUSTRIES PVT. LTD. REER SPA 73
JYOTI CNC INSIDE BACK ROOPLAXMI STEELS 93
DESICCANT ROTORS AUTOMATION LTD. COVER
INTERNATIONAL 11 S
PVT. LTD. K
DOWEL ENGINEERING 95 KUSAM ELECTRICAL 47 SDTRONICS PVT LTD. 83
WORKS INDUSTRIES LTD. SEW-EURODRIVE INDIA 33
L PRIVATE LIMITED
E
LAKSHMI MACHINE SKP BEARING 91
ELECTROTHERM 3 WORKS LTD 5 INDUSTRIES
(INDIA) LTD.
LEE SPRING COMPANY 71 SMALLEY STEEL 43
INDIA PVT. LTD. RING COMPANY
EXOR INDIA PRIVATE 51
LIMITED LEUZE ELECTRONIC SURESH INDU
PVT. LTD. 62 - 63 LASERS PVT. LTD. 39
F
M T
FLIR SYSTEMS INSIDE
INDIA PVT. LTD. FRONT COVER MAC MARKETING 81 TESTO INDIA PVT. LTD. 57
CORPORATION
FLUKE TECHNOLOGIES 21 TOLIA GROUP OF
PVT. LTD. MAIWIR ENGINEERING 31 COMPANIES 17
106
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