Welding
From manual TIG, MIG and MAG welding to automated and laser welding. We choose the welding method that suits the material, the batch size and the quality requirement.
About this operation
- Stainless steel
- Aluminium
- Steel
- Welded constructions
- Enclosures
- Machine parts
Which welding process we choose depends on material, sheet thickness and the requirement for the seam. The table below sets out the four; we make the call per order.
Distortion is the greatest risk to dimensional accuracy when welding. We limit it by metering the heat input, clamping parts and determining the welding sequence in advance. After welding we check the dimensions, so that a deviation does not first come to light during assembly.
Finishing differs per material. On stainless steel we remove heat tint and passivate, so that corrosion resistance around the seam is retained — we explain why that is necessary separately (in Dutch). Aluminium and steel are deburred and, where required, blasted in our blast cabin.
From drawing to delivery
Preparation
Fitting up and fixturing.
Welding
TIG, MIG/MAG or laser.
Finishing
Grinding, pickling and passivating where required.
Inspection
Visual inspection of the weld seams.
Specifications
Indicative values — to be confirmed per project- TIG
- controlled heat input and a clean seam — thin material and visible work in stainless steel and aluminium
- MIG
- inert gas, faster — stainless steel and aluminium, thicker material and larger series
- MAG
- active gas, faster — steel, thicker material and larger series
- Laser welding
- narrow seam with little distortion
- Standards
- welding under ISO 3834-2, certified to EN 1090-1
- Finishing, stainless steel
- remove heat tint and passivate
- Finishing, aluminium and steel
- deburring and, where required, blasting
- Robot welding
- not in house; within the group at Baas Metaal
What to send us
Request a quote- The drawing with the required joint shape
- Material and sheet thickness
- Which dimensions are critical
- Whether there are appearance requirements for the seam
- Whether documentation is part of the delivery
- The earlier those requirements are known, the better we can set up the welding sequence and finishing — straightening afterwards always costs more time
Frequently asked questions
Which welding methods do you have in house?
We weld with TIG, MIG and MAG and have laser welding available. TIG gives the most control over heat input and suits thin material and visible work; MIG and MAG are faster for thicker material and larger series. We do not carry out robot welding in Hengelo — that takes place within the group at Baas Metaal.
Are you certified for welding work?
For welding we work under ISO 3834-2 and we are certified to EN 1090-1. In addition, our quality system is certified to ISO 9001. What that means per order for documentation and inspection is set out on our quality page.
How do you prevent distortion when welding?
By metering the heat input, clamping parts and determining the welding sequence in advance. After welding we check the dimensions, so that a deviation does not first come to light during assembly. Straightening afterwards always costs more time than planning up front.
Which materials do you weld?
Steel, stainless steel in grades 304 and 316, and aluminium. We match the welding method and the finishing to the material: on stainless steel we remove heat tint and passivate, while aluminium and steel are deburred and, where required, blasted.
Discuss your drawing,
part or assembly.
Response within one working day · 074-2912235 · info@assinkschipholt.nl