260 likes | 474 Views
Aluminum Production and Properties. Resistance Welding. Learning Activities View Slides; Read Notes, Listen to lecture Do on-line workbook. Lesson Objectives When you finish this lesson you will understand:. Keywords. Hall- Heroult Process. Carbon Anode. Aluminum Cathode. Bauxite
E N D
Resistance Welding • Learning Activities • View Slides; • Read Notes, • Listen to lecture • Do on-line workbook • Lesson Objectives • When you finish this lesson you will understand: Keywords
Hall- Heroult Process Carbon Anode Aluminum Cathode Bauxite Alumina plus Fluoride salts CO2 Al O Pxxyy xx = % Si Impurity yy = % Fe Impurity Typical Grade: P1020 0.10% Si & 0.20% Fe Additional Electrolytic Refining Available to get 99.999% Purity Grades Range From: P0202 to P1535
Facility for producing aluminum sheet re-rolled directly from molten aluminum Metals Handbook vol 2, ASM
Chemical Composition of Aluminum Alloys [Reference: Resistance Welding Manual, p.11-2, RWMA]
Heat-Treatable Alloys Can obtain increased strength levels through precipitation hardening Typical hardening additions include copper, magnesium, zinc and silicon These additions show increasing solid solubility with increasing temperature Alloys of this type include the 2000, 6000 and 7000 series Non-Heat-Treatable Alloys Strengthened by work-hardening and solid solution strengthening Elements such as manganese, silicon, iron and magnesium are typical solid-solution hardening agents Alloys of this type include the 1000, 3000, 4000 and 5000 series Classification of Aluminum Alloys
Heat-Treatable Alloys 2014 Hydraulic fittings for aircraft and automotive 2036 6009 Automotive Body 2219 tanks 6061 Structural 6101 Electrical Conductors 7075 High Strength Aircraft Non-Heat-Treatable Alloys 1060 Chem Processing Tanks 1100 Architectural 3003 General Purpose, Tanks 5052 Sheet Applications Some Applications of Aluminum Alloys
Employing These Various Treatments Can Produce Aluminum Alloys With A Wide Range of Mechanical Properties As Observed in The Following Tables
Mechanical Properties of Some Aluminum Alloys [Reference: Resistance Welding Manual, p.11-12, RWMA]
Mechanical Properties of Some Aluminum Alloys (CONT.) [Reference: Resistance Welding Manual, p.11-12, RWMA]
Effect of Temperature on Mechanical Properties of Aluminum Alloys [Reference: Resistance Welding Manual, p.11-13, RWMA]
Effect of Temperature on Mechanical Properties of Aluminum Alloys (CONT.) [Reference: Resistance Welding Manual, p.11-13, RWMA]
Effect of Temperature on Mechanical Properties of Aluminum Alloys (CONT.) [Reference: Resistance Welding Manual, p.11-14, RWMA]
Mechanical and Physical Properties of Some Automotive Alloys [Reference: Guidelines to Resistance Spot Welding Aluminum Automotive Sheet, p.4, The Aluminum Association]