FABRICATION OF HEAT-TREATED LAMINATIONS FOR HIGH-SPEED ROTORS IN ELECTRICAL MACHINES

• Main Authors: WERST, MICHAEL, D, LEWIS, MICHAEL, C, ZOWARKA, RAYMOND, C., JR
• Format: Patent
• Language: English; French
• Published: 12.06.2008
• Subjects: BASIC ELECTRIC ELEMENTS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION; INDUCTANCES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAGNETS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

Embodiments of the present invention include methods and an apparatus to fabricate heat treated laminations (61) such as for high-speed rotors of electrical machines. A method, for example, includes heat treating a steel material, cutting a lamination pattern in the steel material to define a plural...