Pulse Laser Welding Academy | DSI Laser Service (Thailand) Co., Ltd.

Our Mission & Vision / Collaborations

A designated objective of DSI Thailand Laser-Welding-Academy is a continuous development of Pulse Laser Welding Technology for customers in any industry, which is accompanying with a deeper and wider understanding regarding base- and filler-materials, individual applications and required component performances.

In cooperation with German Welding Society DVS SLV Hannover, DSI Thailand Laser-Welding-Academy is permitted to educate and qualified Pulse Laser Welders and Pulse Laser Welding Machine Operators. Both DSI-Employees and also Customers who operate with ALPHA LASER Systems.

DVS SLV Hannover Certificate of Appreciation awarded to DSI Thailand Laser-Welding-Academy, Hannover, Februar 2020

Our Mission & Vision / Collaborations

Our Vision & Mission is based on several strong and solid collaborations with international institutes, third parties and societies who have a deep and wide understanding within the world of welding.

Together we offer and carry out :
Investigations - Examinations - Certifications - Publications.

Collaboration partner logos: DVS SLV Hannover, King Mongkut's University of Technology Thonburi, Thai-German Institute, American Welding Society, KINGWELD, Home of Welding, and Fraunhofer Institut Lasertechnik, with quote “A strong collaboration of professional parties is the key of success”

Education & Certification

What is the target ?

“To provide the requirements for the professional
execution of a Pulse Laser Weld whose quality is
compliant with international welding standards.”

How to reach the Target ?

“Combine each element of the six pillars into the PLWeld :
Skill - Machine - Parameters - Wires - Qualification - Knowhow”

DSI Total Solution for Pulse Laser Welding with DSI Laser Wires wheel diagram: Skill, Machine, Parameters, Wires, Qualification, and Knowhow

Education & Certification

More infos

Module 1 : Laser safety regulation

Module 2 : PLW-Machine operation & Maintenance

Module 3 : Introduction to PLW operation

Module 4 : Training for PLWelder certification

Module 5 : Training for PLWelder in Aviation & Aerospace

DSI Laser Academy Certificate of Attendance: Laser Safety Regulation DGUV Vorschrift 11 (former BSVB2)

DSI Laser Academy Certificate of Attendance: Basic practical Pulse Laser Welding “DSI Welder 5”

Laser Safety Training

PLWelder Training

Education : Students Internship

More infos

In 2025, DSI-Academy signed a MoU with King Mongkut’s University Thonburi with the focus on student education, lectures, investigations, researches and publications.

DSI Laser Academy student internship photos: workshop visits, PLW hands-on training, and group photos with DSI Laser Academy and Alpha Laser staff at King Mongkut's University of Technology Thonburi

Memorandum of Understanding between King Mongkut's University of Technology Thonburi and DSI Laser Service (Thailand) Co., Ltd., signed 17 November 2025

Qualification & Engineering

More infos

Pulse Laser Welding Technology can follow any welding standard and its examinations like ISO, AWS, ASME, JIS, GB/T.

Pulse Laser Welding Processes are qualified by :

Welding Procedure Qualification Record (WPQR)
Welding Procedure Specification (WPS)

DSI-Thailand PLWelders are certified acc. to:

DIN EN ISO 14732:2013-12
AWS C7.4/C7.4M:2017
AWS D14.6/D14.6M:2012
AWS D17.1/D17.1M:2017

Welding Procedure Qualification Record (WPQR) of Pulse Laser Weld certification acc. to AWS

WPQR Certification
acc. to AWS

PL-Welder Performance Qualification Test Record certification acc. to AWS

PL-Welder Certification
acc. to AWS

Approval test certificate for welding operators of weld setters certification acc. to ISO

PL-Welder Certification
acc. to ISO

Qualification & Engineering : Case Study

More infos

Recycle Gas Compressor Steam Turbine Casing component on a workshop stand before repair

Component : Recycle Gas Compressor Steam Turbine Casing.

Base Material : ASTM A216 WCA

Identified problem : Partially corroded exhaust nozzle / critical minimum wall thickness almost reached.

Selected repair Technology : Pulse Laser Welding

Selected Filler Material : DSI M NiCr625

Qualification and Certification Processes :

Welding Procedure Qualification Record (WPQR)

Welding Procedure Specification (WPS)

PLWelder and PLWelding-Machine Operator (WOPQR)

Welding Procedure Qualification Record (WPQR) document for this case study

Welding Procedure Specification (WPS) document for this case study

PLWelder and PLWelding-Machine Operator Qualification Record (WOPQR) document for this case study

Welding & Cutting magazine article: Pulsed Laser Beam Welding Leads the Way in Recycle Gas Compressor Steam Turbine repair

Quality Control by authorised Third Party during and after PLW

Distortion control via dial gauges
Visual Testing (VT)
Liquid Penetrant Testing (PT)
Magnetic Particle Testing (MT)
Ultrasonic Testing (UT)
Radiographic Testing (RT)

Distortion control via dial gauges on the repaired component

Visual Testing (VT) of the welded nozzle

VT

Liquid Penetrant Testing (PT) of the welded nozzle

PT

Magnetic Particle Testing (MT) of the welded nozzle

MT

Ultrasonic Testing (UT) of the welded nozzle

UT

Radiographic Testing (RT) of the welded nozzle

RT

Investigations, Examinations, Publications

Technician performing pulsed laser beam welding repair on a steam turbine

Close-up of the repaired steam turbine shaft weld

Repair of a steam turbine in Thailand
using pulsed laser beam welding

(Welding and Cutting, issue 2/2020)

Technician pulsed laser beam welding a shock absorber housing

Close-up of the repaired shock absorber housing weld

Pulsed laser beam welding - start thinking big! Repair welding of a shock absorber housing

(Welding and Cutting, issue 1/2023)

Pulse laser welding equipment set up for spheroidal graphite cast iron repair

Close-up of the repaired spheroidal graphite cast iron weld

Repair welding of spheroidal graphite cast iron: Problem-free without heat pre- and post-treatment

(Welding and Cutting, issue 2/2023)

Pulse laser welding of an aircraft component, seventh heaven above Thailand publication

Close-up of the pulse laser welded aircraft component

Pulsed laser beam welding: In Seventh Heaven above Thailand

(Welding and Cutting, issue 1/2024)

Micrograph of a Heat Affected Zone (HAZ) showing unaffected basic material, perlite decomposition zone, fine grain zone, coarse grain zone, and weld

HAZ - The most feared “Danger Zone” in welding technology

(Welding and Cutting, issue 2/2024)

Pulse Laser Welding development from small-scale to large-scale applications, workshop photo

Pulse laser welding machine performing a large-scale repair

Pulse Laser Welding Development:
Back then it has started with thinking small – now it’s time to start thinking BIG

(Weldfab Tech Times, issue 10/11. 2024)

Investigations, Examinations, Publications

Technicians refurbishing the eroded outlet nozzle of a recycled gas compressor housing by pulsed laser beam welding

Close-up of the pulsed laser welded gas compressor housing nozzle

Pulsed Laser Beam Welding Leads the Race - Refurbishment of the Eroded Outlet Nozzle of a Recyled Gas Compressor Housing

(Welding and Cutting, issue 2/2025)

Nodular cast iron impeller repaired by pulsed laser welding without preheating

Micrograph of the nodular cast iron weld without post-weld heat treatment

A Novel Approach to Pulsed Laser Welding of Nodular Cast Iron Without Preheating and Post-Weld Heat treatment

(Welding and Cutting, issue 1/2026)

Technician pulse laser welding a large duplex steel component

Micrograph of the balanced metal structure in a duplex steel weld

Pulse Laser Welding of Duplex Steel : A balanced metal structure is crucial for quality

(Welding and Cutting, issue 2/2026)

Cross-section of a weld showing coarse grain formation in the Heat Affected Zone

Micrograph comparing HAZ grain formation between arc-welding and pulse laser welding

Coarse Grain Formation within Heat Affected Zone (HAZ) : Comparison between Classical Arc-Welding Methods and Pulse Laser Welding Technology

(Welding & Cutting issue 1/2027)

Ongoing Investigation :

Pulse laser welding torch in operation, comparison test with laser cladding

Laser cladding process for comparison against pulse laser welding

Comparison between Pulse Laser Welding and Laser Cladding

Ongoing Investigation :

Babbitt bearing before refurbishing by pulse laser welding

Babbitt bearing refurbished by pulse laser welding

Babbitt Bearing Refurbishing by
Pulse Laser Welding

PLW Basic Understanding

More infos

PLW Basic Understanding: ten frequently asked questions about pulse laser welding arranged around an illustration of the pulse laser welding process — What is the difference between Laser Welding and PULSE Laser Welding? Can Pulse Laser Welding follow any Welding Standard and get qualified by WPQR / WPS? What are the unique advantages of Pulse Laser Welding? Why the pulsed Laser can weld any metal and join very different base materials? Why Pulse Laser Welding can use similar and dissimilar filler materials (wires)? What does LASER mean and why is the beam of Pulse Laser Welding invisible? What is the Heat Affected Zone (HAZ) and how does it compare between arc welding and PLW? Why Pulse Laser Welding is unique? What is the difference between classical-arc welding methods and Pulse Laser Welding Technology?

Professional Facts & Fantastic Fictions

It’s the story of …

“The Return of the modern Jedi Knights …

Stormtrooper and Baby Yoda figures posed on a DSI Laser AL 1200F pulse laser welding machine

Stormtrooper, Baby Yoda, and Darth Vader figures posed in front of a DSI Pulse Laser Welding Academy banner

… who fights with their ALPHA LASER machines for the prevention of the Good Force …

… in any industry within Thailand and whole Southeast Asia.”

Baby Yoda and Darth Vader figures posed on welded metal pipework

Professional Facts & Fantastic Fictions

Prof. Dr.-Ing. G. Kuscher

German Welding Society - DVS SLV Hannover

Master Yoda of PLW-Technology - DSI Academy Thailand

Good to know - Professional Fact :

In the early 1990, Prof. Kuscher was one of the visionaries who understood the unique advantages of the pulsed Laser and saw the benefit of its (almost) unlimited applications, adaptable for any industrial sector.

At about the same time ALPHA LASER has the vision of engineering and manufacturing Pulse Laser Welding Systems which leads to the company foundation in 1994.

Soon later ALPHA LASER presented the first Nd:YAG Machine with a pulsed laser power of 25 Watt - from which on the successful story began and continued … until nowadays.

Click : ALPHA LASER - the Evolution of Average Pulse Power

Professional Facts & Fantastic Fictions

Oil painting depicting Yoda and Darth Vader with lightsabers above laser welding robots, captioned “May the force of the Pulse Laser be with you, always”

Oil on Canvas, 50x40cm
Painted by Christian Banpao, 2024

DSI Thailand Laser-Welding-Academy present : The return of the modern Jedi-Knights who fights (in a positive sense) with their ALPHA LASER Machines for the prevention of the Good Force within all industrials sectors in Thailand in whole Southeast Asia and sometimes beyond.