Tham khảo tài liệu 'the welding of aluminum & its alloys part 13', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Index age hardening see precipitation hardening alloy elements 35-36 alloying interstitial and substitutional 14 alloy metallurgy 40-46 heat treatable 43-46 non-heat treatable 40-43 aluminium applications 7 characteristics 4 Appendix B history 1 backing bars and strips 78-80 butt welds definitions 75-78 cold work strain hardening 15-16 defects 199-205 hot cracking 24-31 oxide filming 22-24 porosity 18-22 suck-back in TIG welding 111 degreasing 66-68 mechanical cleaning 66 chemical cleaning pickling 67 design backing bars and strips 78-80 edge preparations joint design 72-78 edge preparations joint design for MIG 136-139 edge preparations joint design for TIG 98-99 effect of position 72 for access 70-71 designations 36-40 alloy composition identification 36-38 temper designations 38-40 distortion 84-89 electron beam welding capabilities 157 160 process principles 155-157 fatigue 89-96 joint classification 92-94 filler metals effect on hot cracking 29-31 selection 46-50 fillet weld definitions 74 75 friction welding friction stir welding 161-165 capabilities 163 164 165 mechanical properties 165 process principles 160-161 rotary motion 161 gamma radiography 213 GmAW see MiG grain size 12-13 effect on hot cracking 30 GTAW see TIG handling of parent metals 51 laser cutting 58-63 health and safety 60-63 parameters 61 principles 58-60 laser welding arc augmented 154 155 CO2 laser welding 152-153 defects 154 Nd-YAG solid state welding 153-154 process principles 150-152 liquation cracking see hot cracking mechanical cutting 64-66 MIG welding arc starting 135 contact tip 129-130 electro-gas welding 143-144 filler wire 133-134 fine wire 124 mechanised and robotic welding 141-143 parameters argon shielding 136-137 parameters helium shielding 138 power sources 119-121 process principles 116-118 235 236 Index pulsed MIG 121-124 shielding gases 130-133 spot welding 144-146 terminating the weld 140-141 torches 125-126 torch positioning 138-140 twin Wire 124 125 wire feeders .
