Pulse Laser Welding Services
Jump to PLW - (almost) unlimited Applications
Jump to Molds & Dies / Automotive
Jump to Cast iron & Grey cast iron
Jump to Oil & Gas / Petrochemical / Offshore
Jump to Exotic Materials and Combinations
Jump to Power Generating / Turbo Machinery
Jump to DSI Surface Engineering
Jump to Heavy Industry
Jump to Mobile Welding at Customers Site
Jump to Aerospace / Defence (MRO)
Molds & Dies / Automotive
With advanced Pulse Laser Welding technology, DSI-Thailand create custom welding wires for every stage of Molds & Dies maintenance; repairing and enhancing material performance to extend the operation lifespan.
Automotive car body sheet metal
PL-Mobile Welding at customer site :
Focussed on Problem Solutions :
- Shape modification
- Mirror surface finishing
- Etched surface finishing
- Flash removal at parting line
- Ejector pin hole repair
- Deep-area deposit welding
- Wear and scale removal / Crack repair
Molds & Dies Applications :
- Plastic injection molds
- Aluminum die-casting molds
- Cast iron molds / sand patterns
- Medical industrial molds
- Press dies
- Glass molds
- Hot forging dies
- Any mold & die component
Oil & Gas / Petrochemical / Offshore
We provide advanced PLW-Technology for repair components without the risks of heat-related issues such as distortion or cracking - but always full metallurgical bonding! Equipped with 1,200 & 2,400W laser-power machines, we can significantly reduce delivery times without compromising quality.
Premium PLW-Quality proved by WPQR / WPS.
Quality Control in acc. to ISO, AWS, JIS and other.
Advanced PLWelding for Critical Components :
At DSI, we are specialised in refurbishing any challenging materials and hardfacing applications, e.g. Stellite 6/12/21; AISI 4140; Hastelloy / Hastelloy X; Duplex / Super Duplex; Cast- Grey Cast Iron; Monel, Beryllium Copper.
Pulse Laser Welding provides always full metallurgical bonding and the process is always WITHOUT …
- Pre- or post-heat treatment
- Residual stress / Distortion
- Cracks / Pores / Imperf
- Negative effects to mechanical technological properties
Power Generating / Turbo Machinery
Pulse Laser Welding for refurbishing critical components ensuring precision, reliability, and national power generating security.
PLW-Processes are WPQR / WPS qualified acc. to AWS D14.6/D14.6M:2012 e.g. high performance base materials 28CrMoNiV4-9 ASME SA217 WC6 / ASTM A387 Gr.11 / 34CrMo1A / 30CrMoNiV5.11
Power Generating applications :
The refurbishment of Turbine shafts e.g. journal- and trust collar bearing or sealing positions can be done without dismantling the turbine blades and copper winding components in motor rotors - because Pulse Laser Welding does not require pre- or post-heat treatment (PWHT).
Applications (Selection) :
- Gas- and Steam turbine casings
- Turbine rotor Shafts
- Generator & Motor Rotor
- Turbine Blade Tips
- Babbitt Bearing
- Steam Sprint Nozzle
- Ventilation Valve Cage
- Compressor diaphragm
Heavy Industry
In the Heavy Industry sector, Pulse Laser Welding technology provides refurbish solutions without heat-related risks such as distortion or cracking, with fast turnaround time and always premium quality, confirmed by WPQR / WPS.
For non-movable components, DSI-Thailand provide PL-Mobile-Welding at customer site. In our workshop we can accommodate components of up to 30 tons.
Pre- and finish machining service is a solid part of DSI TOTAL SOLUTION concept.
Pulse Laser Welding - Start thinking BIG !
Our 1200 & 2400W laser powered Machines provides fast turn around time, very short lead time, high deposit rate and semi-automatic PLW with continuous wire feeding.
- Wear and tear of rotating parts
- Casing components (e.g., grey cast iron crack)
- PLWelding at any rotor shaft position e.g. bearing or oil seal
- Upgrades of challenging materials and hardfacing applications
Aerospace / Defence (MRO)
DSI-Thailand provide advanced Pulse Laser Welding for Maintenance, Repair, Overhaul (MRO) of critical Aircraft- Aerospace and Defence components.
Aerospace / Defence (MRO) Typical PLW-Applications are e.g. critical Aircraft engine components, Auxiliary power units, tooling components, aircraft structures (fuselage, wings), composition molds.
MRO Materials & Qualifications
Base Materials (Selection)
Nickel-based Alloys : Inconel 625 / Inconel 718 / Hastelloy / Hastelloy X
Titanium Alloys :
Ti-6Al-4V (Gr.5) Ti-6Al-2Sn-4Zr-6Mo (Beta-2lS)
Aluminium Alloys :
2024 / 6061 / 7075
Steel and high-strength steel alloys :
4340 / 300M / Maraging-Steels
DSI-Thailand’s PLWelders and PLWelding Machine operators are certified acc. to American Welding Society (AWS) standards :
AWS C7.4 : Process specification and operator qualification for laser beam welding
AWS D17.1 : Specification for fusion welding for aerospace applications.
Mobile Welding at Customers Site
The concept of DSI TOTAL SOLUTION includes Pulse Laser Mobile Welding at customer site by keep promising the premium quality of PLW-Technology and all its unique advantages
Very quick operational readiness provided by an experienced PL-Mobile-Welding team.
Key-advantages of PL-Mobile-Welding
Effort-, Cost- & Time saving factors :
- The equipment can remain at place
- Professional set up
- No dismantling
- No transportation
- No re-assembly
- No- pre- or post weld heat treatment
Overall no danger to the component e.g. its motor or control panels because of not welding with arc but with pulsed Light and its Speed.
DSI Surface Engineering
How to select the suitable Wire?
Pulse Laser Welding offers the possibility of significantly increasing the performance of components - static and rotating parts - by selecting a wire tailored to the application.
This systematic DSI Surface Engineering increase the operating life of the component, which in turn significantly reduces the downtime of the production plant.
It’s a cost-down service for customers in any industry.
Case Study / Problem :
Heavy abrasion of the impeller was the cause of very short operating span and frequent pump downtime.
Case Study / Solution :
Upgrade the OEM base material SUPER DUPLEX (1.4501) by Pulse Laser Deposition Welding the whole impeller surface with filler material DSI M ST6 (Stellite 6)
Advantages of PLW & DSI M ST 6 :
Full metallurgical bonding / high temperature and wear resistance Crack-Free Pulse Laser Weld (Stellite 6) Distortion free / very low heat impact during PLW.
Exotic Materials and Combinations
The pulsed Laser can weld any metal material and can even join very different base materials e.g. Alu-Bronze or Tin join with Stainless Steel for Babbit Bearings.
Applications :
DSI-TH is specialise in repairing challenging materials such as Copper and Aluminium alloy, Titanium, Duplex / Super Duplex, Hastelloy X / C276, Monel 400 / K500, Stellite 1/6/12/21
Our PLW-Services are fully compliant with international welding standards e.g. ISO / AWS / ASME / JIS and the premium PLW-Quality is proven by WPQR / WPS.
Pulse Laser Welding always provides :
- Full metallurgical bonding
- Very low heat input
- No distortion
- Very precise weld
Cast iron / Grey cast iron / Cast steel
Thanks to Pulse Laser Welding Technology and its unique advantages, damaged components can be easily and quickly get repaired, without compromising the premium quality but with always full metallurgic bonding - which is not possible with classical arc-welding methods. PLW can even repair very rotten grey cast iron pump casings and many other, usually total loss components.
PLW - (almost) unlimited Applications
Keep thinking small
Start thinking big
Don’t scrap it
Exotic material
