Welded joints - Quality-assured design in practice
Design, production and quality assurance of the weld seam
Main focus
- Welding design in practice (production- and stress-oriented) for static and dynamic loads
- Controlling the quality of a welded construction already during development
- Avoiding cases of damage and optimizing welded constructions
- Preparation of standard-compliant welding drawings according to ISO 2553 with reasonable tolerancing according to ISO 13920 and ISO 9013, determination of the required acceptance level according to ISO 5817 - steel (ISO 10042 - aluminum alloys)
On the subject
Welded joints play an important role in mechanical engineering, plant construction, rail vehicle construction, pressure vessel construction, vehicle construction and many other industries. It is therefore essential for product designers and engineers to have extensive knowledge of the design of welded structures and also their quality control. To ensure the weldability of an assembly, the structural design (including dimensioning), the weldability of the selected materials and the manufacturing possibilities (e.g. accessibility) should always be taken into consideration. Standards such as ISO 3834 regulate the quality requirements for the fabrication store and establish principles for quality assurance of welded products.
Objective
In this seminar you will learn how in practice the interaction between design, manufacturing including quality assurance and material selection looks like and how you as a designer can control the quality of the final product. In connection with quality, you will learn about manufacturer certifications, e.g. according to the standards ISO 3834, EN 1090 for load-bearing components made of steel and aluminum and EN 15085 for rail vehicles. After the seminar, you will understand why welds are potential weak points and how this is related to microstructural changes in the heat-affected zone and the notch effect. The relationship between weld quality and welded structure stressability will also be explained in a very understandable way.
You will recognize that the standard-compliant preparation of manufacturing drawings according to ISO 2553 with adequate tolerancing according to ISO 13920 counteracts the occurrence of damage just as much as their stress-compliant design and professional manufacture. Case studies are used to show how welded structures can be designed in practice in accordance with FKM and Eurocode.
Contents
Welding technology practice
- Influence of welding parameters on the executed weld for selected welding processes and the importance of welding procedure specifications (WPS)
- Weld seam preparation, microstructure changes and their effects
- Weld seam as a notch - and what to do about it
- Formation of residual stresses and distortion and possible countermeasures, measurement of residual stresses
Symbolic representation of welds according to ISO 2553, general tolerances and cut edge quality
- Basic, additional, supplementary symbols and tale
- Dimensioning of welds
- Exercise part for consolidation
- General tolerance ISO 13920 - meaning and application
- Tolerance for thermally cut parts according to ISO 9013
- Application example for cut edge inspection according to EN 1090
Quality of a welded joint
- What does it depend on - how can the designer control it?
- Weld imperfections and acceptance levels according to ISO 5817
- Introduction to non-destructive testing (NDT) and its significance
- Quality assurance measures in welding technology
- Application-related quality requirements and manufacturer certifications
- Measures for the prevention of damage
Design of welded structures (with many practical examples)
- Design according to requirements - industry-neutral - production and stress-oriented
- Application-oriented design - mechanical engineering, rail vehicle construction, steel construction, vehicle construction, welded sheet metal structures, etc.
- Weld seam post-treatment to increase fatigue strength
- Case studies - design and calculation according to FKM and Eurocode
Target group
Engineers and specialists from the fields of development, design and calculation from general mechanical engineering and special mechanical engineering, teachers from educational institutions, specialists from research institutions and testing companies.
Prices
- First participant from a company: 790,- € (excl. VAT)
- Each additional participant from the same company: 580,- € (excl. VAT)
- University members (teachers and students): 295,- € (excl. VAT)
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Seminar on November 28 + 29:
Documents
You will receive detailed seminar documents as well as a certificate of participation.
Your speaker
Dipl.-Ing. HTL Michael Brand
- Mechanical engineering studies at University of Applied Sciences St. Gallen (CH) and welding engineer IWE at SLV Fellbach
- Welding supervisor according to ISO 14731 for EN 15085 CL1 rail vehicles and EN 1090 EXC3 for steel construction
- Managing director and owner of Brand Engineering GmbH