Aluminium requires more careful handling in welding than most metals. Its low melting point combined with high thermal conductivity, a surface oxide layer that reforms within seconds of cleaning, and its sensitivity to porosity and distortion all mean that parameters need to be controlled closely throughout. A weld that looks acceptable on the surface can still be structurally unreliable if the preparation or setup was not right.

At Laser Indonesia, aluminium welding is part of our everyday work — from architectural components for landmark public facilities to industrial structures and component repairs where the outcome needs to be dependable. We work across TIG, MIG, laser welding, and robotic welding, and we discuss with each client which approach is most appropriate for their specific job.

Matching the Process to the Job

Each welding process has its own strengths, and choosing the right one has a direct impact on quality, efficiency, and overall cost. We talk through this with clients before work begins.

TIG Welding — Kemppi MasterTIG T180
The preferred choice for precision work: visible joints, thin-walled components, or where the weld finish is a formal requirement. The Kemppi MasterTIG T180 offers excellent heat input control with a stable arc, producing clean weld beads with minimal distortion.

MIG Welding — Kemppi FastMig 350
An efficient option for larger production volumes and material of medium to greater thickness. The Kemppi FastMig 350 provides good deposition rates with parameter control precise enough for aluminium — not all MIG machines are well-suited to this material.

Robotic MIG Welding — 2× Fronius TPS i400 on KUKA Robots
Both Fronius TPS i400 units are mounted on KUKA robots and can be used for aluminium or steel welding depending on production requirements. The TPS i400's Pulsed MIG mode allows aluminium welding with controlled heat input and a stable arc, reducing the risk of burn-through and porosity. For repeat production requiring consistent results across units, robotic welding is the most reliable approach we have.

Handheld Laser Welding — 12 Units @ 1500W
With twelve handheld laser welding units at 1500W each, we have sufficient capacity to handle high-volume laser welding work or to deploy teams to multiple locations concurrently. The very narrow heat-affected zone and high travel speed make this a good option for high-quality thin material or areas that conventional equipment cannot easily access.

Robotic Laser Welding — 2× 2000W on KUKA Robots
Two 2000W laser welding units integrated with KUKA robots provide the combination of laser precision and robotic repeatability needed for components with complex geometries and tight dimensional tolerances.

All Aluminium Alloy Series, Including High-Strength Grades

We work across the full range of aluminium alloys commonly used in industry — from the 1xxx series through to the 6xxx alloys most widely used in construction and architectural applications.

We also work with duralumin — 2xxx series (Al-Cu) and 7xxx series (Al-Zn) alloys — used in critical applications requiring high strength. Welding these materials calls for controlled preheat, careful filler metal selection, and strict heat management to prevent hot cracking. It is work that requires a clear approach and consistent execution, and we carry it out as a regular part of our operations.

Some of the Projects We Have Worked On

Most of the facade, signage, wayfinding, and ornament work we handle involves welded aluminium. Projects we can mention include:

• JIS — Jakarta International Stadium: aluminium signage and wayfinding systems for one of the largest stadiums in South-East Asia
• Terminal 3, Soekarno-Hatta International Airport: architectural aluminium and wayfinding elements for Indonesia's busiest international terminal
• Facades, ornaments, and public elements across multiple cities: exterior panels, structural ornaments, and decorative elements for office buildings, commercial centres, and public facilities in various parts of Indonesia
• IKN Nusantara: part of the development of Indonesia's new capital

Repair and Overlay on Cast Aluminium

Beyond new fabrication, we also carry out repair and overlay work on cast aluminium components, including pump housings for power generation and energy infrastructure projects.

Cast aluminium pump housings damaged by erosion, cavitation, cracking, or surface defects are often routed directly to replacement procurement. That process is not always quick or inexpensive, and facilities frequently need the equipment back in service as soon as possible.

With an appropriate combination of laser welding and TIG welding, we can carry out:

• Surface overlay — depositing material onto eroded areas to restore original dimensions
• Crack repair — welding cracks in housing walls without compromising structural integrity
• Casting defect repair — closing porosity or defects identified during inspection or overhaul
• Flange and fitting reconstruction — restoring damaged connection areas from operational loading

The result is a component returned to near-original specification, at a cost and lead time that is generally more manageable than sourcing a replacement.

On-site Across Indonesia

Not every component can or needs to be brought to our workshop in Cimahi. For on-site work — facade repairs, installation of architectural elements at height, or welding of large components that cannot practically be moved — our team is able to travel to site.

We have completed on-site projects across multiple provinces, including Java, Sumatra, Kalimantan, and Papua. Our handheld laser welding units allow us to maintain workshop-level standards in the field.

Technical Consultation

Every aluminium welding project has its own considerations. We recommend a brief technical discussion before quoting — to understand the material, thickness, existing condition, and the end requirements. From there we can suggest the most suitable process and prepare a quotation within 1 working day for projects with clear specifications.

Technical consultation is provided at no charge.

📞 WhatsApp: 0811-9-52737
✉️ Email: info@laserindonesia.com
📍 Jl. H. Amir Machmud No. 539, Cimahi

Empowering Indonesia through laser technology.