Lectures
- Introduction. The principle of mechanical machining methods.
- Parameters affecting the mechanical machining and their influence on surface quality.
- The principle of joining materials, removable (bolted joints, wedge joints, etc.) and permanent joining (welding, soldering, etc.) - overview, examples
- Fusion welding. The physical basis of the process. The essence of the arc. Melting and transfer of metal electrodes in an arc.
- Structure and properties of welded joints - weld metal, heat affected zone, metallurgical defects.
- Blacksmith welding, flame welding, arc welding - principles, application examples
- Electroslag welding, resistance welding, laser welding - principles, using.
- Metallurgical factors determining quality of welded joints, weldability tests, cutting oxygen.
- Heat treatment of steel before welding, during welding and heat treatment of weldments.
- Control of welded joints, faults and joints in the surfacing and their classification according to ISO standards.
- Soft and hard soldering - principles, applications. The principles of bonding, testing of adhesives and bonded joints, glued joints disorders.
- Degradation of the properties of joints (manufacturing, service). Access to the expertise and the causes of joints and welded construction accidents.
Practice
- Preliminary exercises. The principle of joining materials.
- Demountable joints - screw, wedge, etc.
- Permanent joints - welding, soldering, bonding – examples.
- Evaluation of the macrostructural characteristics of welded joints.
- Evaluation of the microstructural characteristics of welded joints.
- Control of welded joints, welded joints defects and their evaluation according to ISO standards.
- Control of weldability of steel - carbon equivalent steels susceptible to cracking, the calculation of temperatures and times of early diffusion changes.
- Heat treatment of steel before, during and after welding.
- Degradation mechanisms of weld joints and selection of the suitable arrangements for avoid them.
- Delivery of the specified programs. The final test.
- Credits
- Introduction. The principle of mechanical machining methods.
- Parameters affecting the mechanical machining and their influence on surface quality.
- The principle of joining materials, removable (bolted joints, wedge joints, etc.) and permanent joining (welding, soldering, etc.) - overview, examples
- Fusion welding. The physical basis of the process. The essence of the arc. Melting and transfer of metal electrodes in an arc.
- Structure and properties of welded joints - weld metal, heat affected zone, metallurgical defects.
- Blacksmith welding, flame welding, arc welding - principles, application examples
- Electroslag welding, resistance welding, laser welding - principles, using.
- Metallurgical factors determining quality of welded joints, weldability tests, cutting oxygen.
- Heat treatment of steel before welding, during welding and heat treatment of weldments.
- Control of welded joints, faults and joints in the surfacing and their classification according to ISO standards.
- Soft and hard soldering - principles, applications. The principles of bonding, testing of adhesives and bonded joints, glued joints disorders.
- Degradation of the properties of joints (manufacturing, service). Access to the expertise and the causes of joints and welded construction accidents.
Practice
- Preliminary exercises. The principle of joining materials.
- Demountable joints - screw, wedge, etc.
- Permanent joints - welding, soldering, bonding – examples.
- Evaluation of the macrostructural characteristics of welded joints.
- Evaluation of the microstructural characteristics of welded joints.
- Control of welded joints, welded joints defects and their evaluation according to ISO standards.
- Control of weldability of steel - carbon equivalent steels susceptible to cracking, the calculation of temperatures and times of early diffusion changes.
- Heat treatment of steel before, during and after welding.
- Degradation mechanisms of weld joints and selection of the suitable arrangements for avoid them.
- Delivery of the specified programs. The final test.
- Credits