Diploma. Restoration of cervical wagon axle.

Russian language
Graphic part - 9 sheets.

TABLE OF CONTENTS
1. description of the product 11
1.1 working environment axis 12
1.2 processing requirements axis 13
1.1 The characteristics of the base metal 15
1.1.1 chemical properties 15
1.1.2 Physical properties 16
Weldability 1.2 16
1.1.3 hot crack. 17
1.1.4 cold cracks. 17
1.1.5 embrittlement of welded joints. 19
2. The calculation of the surfacing 21
2.1. choice of method of surfacing 21
2.2. selection of welding consumables 22
2.2.1 The choice of the type of weld metal 22
2.3. calculation of welding parameters 24
2.3.1 Mode parameters of arc welding: 24
2.3.2 The preparation of input data: 24
2.4. calculation of the speed of rotation axis 26
2.5. calculation of travel distance of the burner 27
2.6. selection of welding equipment 27
3. The purpose and application settings for the welding axle necks 30
3.1. Description of the unit 32
3.1.1.mehanicheskaya part 32
4. The development process 34
4.1. repair technology 34
4.2. work on the installation hole by overlaying performed in the following sequence: 34
5. Quality Control 36
6. Calculation of drive elements 39
6.1. calculation of the gear 39
6.2. payment Roller 41
7. The economic part 44
determining the cost of processing the product 47
8. Occupational Safety 58
8.1. analysis of hazardous production factors for automatic surfacing samozahistnoy tape 60
8.2. engineering solutions to improve the safety of the process and equipment, which are used 65
9. conclusions 76
10. The list of references 77
11. Annex 78