Thesis "Assembly and welding of crane girders"
Number of drawings - 10 pcs (A1), made in a compass
Explanatory note pages - 128.

Content
Introduction 7
1 Development of a technological process for welding a product 11
1.1 Description of the product design and assessment of its manufacturability 11
1.2 Selection of material of construction and its characteristics 12
1.3 Calculation of structural strength 13
1.4 Specifications for manufacturing 17
1.5 Selection and justification of the method of welding the structure 18
1.6 Selection and justification of welds 27
1.7 Calculation of welding parameters 28
1.8 Selecting welding equipment 33
1.9 Selection of consumables 40
1.10 Quality control of the manufactured product 44
1.10.1 Control of base materials 46
1.10.2 Control of auxiliary materials 46
1.10.3 Inspection of workpieces 47
1.10.4 Inspection of the weld assembly 48
1.10.5 Inspection of welded joints 48
1.11 Rationing of the technological process 51
1.12 Layout of the assembly and welding area 65
2 The choice of the design of the assembly and welding device 68
2.1 Requirements for assembly and welding devices 68
2.2 Development of a welding stand 69
2.3 Development of a welding table for setting stiffeners 71
2.4 Development of a rotator for turning the beam 72
3 Economics and organization of production 74
3.1 Baseline 75
3.2 Calculation of the cost of assembly and welding 78
3.3 Justification of cost-effectiveness 90
4 Safety and environmental protection 95
4.1 Analysis of the possibility of negative impacts of the designed technological process on the environment and humans 95
4.2 Safety requirements 97
4.3 Electrical Safety 99
4.4 Preventing the risk of eye and skin injury from arc rays 100
4.5 Preventing the danger of gas poisoning 101
4.6 Avoiding the risk of burns 105
4.7 System for ensuring the necessary microclimate parameters 105
4.8 Lighting system 106
4.9 Fire safety system 108
4.10 Calculation of industrial lighting 109
4.10.1 Calculation of artificial lighting 110
4.10.2 Calculation of natural light 115
Conclusion ... 117
References ... 118
Appendix A Operation Card 120
Appendix B Route map 122