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Subramaniam Janaki Rangaswamy

from Rochester Hills, MI
Age ~74

Subramaniam Rangaswamy Phones & Addresses

  • 642 Shellbourne Dr, Rochester Hills, MI 48309 (248) 373-9329
  • Birmingham, MI
  • Stony Brook, NY
  • Troy, MI
  • Port Jefferson Station, NY

Resumes

Resumes

Subramaniam Rangaswamy Photo 1

Subramaniam Rangaswamy

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Location:
Rochester, MI
Industry:
Mining & Metals
Work:
Oerlikon
Senior Manager, Training and Technical Customer Support

Sulzer Aug 2009 - Sep 2013
Technical Director

Sulzer Oct 2004 - Jul 2009
Plm of Metals and Alloys and Head of R and D

Wall Colmonoy Apr 1996 - Sep 2004
Technical Director

Sulzer Plasma Technik Sep 1988 - Jul 1996
Engineering Manager
Education:
Stony Brook University 1978 - 1980
Master of Science, Doctorates, Masters, Doctor of Philosophy, Materials Science, Philosophy
Indian Institute of Technology, Kharagpur 1967 - 1972
Bachelors, Bachelor of Technology
Skills:
Mining
Microsoft Office
Project Management
Lean Manufacturing
Six Sigma
Change Management
Continuous Improvement
Manufacturing
Management
Thermal Spray
Materials
Materials Science
Metallurgy
Machining
Metals
Coatings
Characterization
R&D
Process Improvement
Root Cause Analysis
Product Development
Engineering Management
Interests:
Plays
Movies
Painting and Social Networking
Indian Classical Music
Languages:
English
Tamil
Malayalam
Hindi
Kannada
Subramaniam Rangaswamy Photo 2

Plm And Head Of Development

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Location:
Rochester, MI
Industry:
Business Supplies And Equipment
Work:
Sulzer
Plm and Head of Development
Subramaniam Rangaswamy Photo 3

Subramaniam Rangaswamy

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Publications

Us Patents

Iron-Based Braze Filler Metal For High-Temperature Applications

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US Patent:
7392930, Jul 1, 2008
Filed:
Jul 6, 2006
Appl. No.:
11/480961
Inventors:
Subramaniam Rangaswamy - Rochester Hills MI, US
Dientje J. Fortuna - Lake Orion MI, US
Assignee:
Sulzer Metco (US), Inc. - Westbury NY
International Classification:
B23K 31/02
C22C 38/18
US Classification:
2282481, 228183, 228245, 420 34
Abstract:
Brazing filler metal compositions have excellent wettability to nickel/cobalt/iron-based base metals and produce braze joints with high strength and heat/corrosion resistance. The iron-based braze filler metal includes chromium in amounts between about 20 to 35 percent by weight, silicon in amounts between about 3 to 12 percent by weight, phosphorus in amounts between about 3 to 12 percent by weight; and 0 to about 0. 2 weight percent of one or more of calcium, yttrium and misch metal, the balance being iron. These filler metals are suitable for the manufacture of several different types of heat exchangers and catalytic converters at a significantly lower cost compared to currently known braze filler metal compositions.

Zirconium Oxide Powder Containing Cerium Oxide And Yttrium Oxide

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US Patent:
45992703, Jul 8, 1986
Filed:
May 2, 1984
Appl. No.:
6/606024
Inventors:
Subramaniam Rangaswamy - Port Jefferson Station NY
John H. Harrington - Warwick NY
Assignee:
The Perkin-Elmer Corporation - Norwalk CT
International Classification:
B05D 108
US Classification:
428402
Abstract:
A flame spray material for producing a low thermal conductivity ceramic coating is comprised of a homogeneous ceramic composition formed of zirconium oxide, cerium oxide and yttrium oxide. The composition is preferably in the form of composite particles each of which contains a plurality of subparticles of each of the oxide constituents bonded with an organic binder.

Corrosion And Wear Resistant Alloy

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US Patent:
46923055, Sep 8, 1987
Filed:
Nov 5, 1985
Appl. No.:
6/795057
Inventors:
Subramaniam Rangaswamy - Port Jefferson Station NY
John H. Harrington - Warwick NY
Assignee:
Perkin-Elmer Corporation - Norwalk CT
International Classification:
C22C 1905
C22C 1907
C22C 3000
US Classification:
420436
Abstract:
A novel alloy is disclosed which is characterized by high resistance to wear and corrosion. The alloy consists essentially of 2 to 25% chromium, 5 to 30% molybdenum, 3 to 15% tungsten, 2 to 8% copper, 2 to 8% boron, and 0. 2 to 2% carbon; the balance being incidental impurities and at least 30% of a metal selected from the group consisting of nickel, cobalt and combinations thereof, with the total of molybdenum and tungsten being at least 16%. The alloy is preferably in the form of a powder for thermal spraying, and coating produced thereby generally have an amorphous structure.

Composite Hard Chromium Compounds For Thermal Spraying

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US Patent:
47255080, Feb 16, 1988
Filed:
Oct 23, 1986
Appl. No.:
6/922223
Inventors:
Subramaniam Rangaswamy - Port Jefferson Station NY
Burton A. Kushner - Old Bethpage NY
Roger Kaufold - Madison CT
Assignee:
The Perkin-Elmer Corporation - Norwalk CT
International Classification:
B32B 100
B32B 1502
US Classification:
428570
Abstract:
A thermal spray material has been developed that includes a composite powder comprising chromium carbide or chromium boride and copper or copper alloy in the form of kernels of the chromium carbide or boride clad with the copper or copper alloy. Preferably the thermal spray material includes a self-fluxing alloy composition.

Thermal Spray Iron Alloy Powder Containing Molybdenum, Copper And Boron

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US Patent:
48224154, Apr 18, 1989
Filed:
Nov 22, 1985
Appl. No.:
6/801035
Inventors:
Mitchell R. Dorfman - Smithtown NY
Subramaniam Rangaswamy - Port Jefferson Station NY
Josph D. Reardon - Happauge NY
Assignee:
Perkin-Elmer Corporation - Norwalk CT
International Classification:
C22C 3820
US Classification:
75251
Abstract:
A novel iron based alloy is disclosed which is characterized by high resistance to wear and corrosion. The alloy consists essentially of 0 to 40% chromium, 1 to 40% molybdenum, 1 to 15% copper, 0. 2 to 5% boron, and 0. 01 to 2% carbon; the balance being incidental impurities and at least 30% iron, with the molydenum being at least 10% if the boron is greater than 2%. The alloy is preferably in the form of a powder for thermal spraying, and coatings produced thereby may have an amorphous structure.

Casting Alloys And Method Of Making Composite Barrels Used In Extrusion And Injection Molding

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US Patent:
61974374, Mar 6, 2001
Filed:
Feb 22, 1999
Appl. No.:
9/255168
Inventors:
David Martin Bielec - Flat Rock MI
Samuel Conrad DuBois - Madison Heights MI
Subramaniam Rangaswamy - Rochester Hills MI
Assignee:
Wall Colmonoy Corporation - Madison Heights MI
International Classification:
B32B 1504
US Classification:
428627
Abstract:
A composite barrel for use in extrusion or injection molding is disclosed. The composite barrel includes an outer housing having a cylindrical bore that extends throughout the length of the outer housing. A wear-resistant lining is disposed on an interior surface that defines the cylindrical bore. The lining is fabricated from an alloy that includes a base metal and phosphorus and the lining may contain hard abrasion-resistant particulate, such as tungsten carbide. The base metal is nickel or cobalt or a mixture of nickel and cobalt. The alloy is typically applied by centrifugal casting and can be cast in a nitrogen-rich atmosphere without creating undesirable lining porosity. Such linings can be made for a fraction of the cost of comparable linings that must be cast under vacuum or in an atmosphere of argon.

Ceramic Superconductive Powder

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US Patent:
51400057, Aug 18, 1992
Filed:
Feb 4, 1988
Appl. No.:
7/152181
Inventors:
Subramaniam Rangaswamy - Stony Brook NY
Burton A. Kushner - Old Bethpage NY
Anthony J. Rotolico - Hauppauge NY
Assignee:
The Perkin-Elmer Corporation - Norwalk CT
International Classification:
C01F 1700
C01G 302
US Classification:
505 1
Abstract:
A superconductive oxide powder is produced by a method comprising spray drying a slip to form agglomerates, feeding the agglomerates sequentially through a first and a second oxygen supported combustion flame for fusing the fine particles in the agglomerates to form an intermediate powder, annealing the intermediate powder in an oxygen-containing environment such as to produce a friable mass, and crushing the mass to form the superconductive oxide powder. For example, a precursor compound in the slip is barrium carbonate, the other precursor constituents are yttrium oxide and copper oxide, and the yttrium, barium and copper in atomic proportions in the precursor constituents are 1:2:3+Y where Y denotes a copper surplus having a value of up to about 1. 5. In the final powder the proportions are 1:2:3+Z where Z is between about 0. 2 and 1.

Thermal Spray Powders For Abradable Coatings, Abradable Coatings Containing Solid Lubricants And Methods Of Fabricating Abradable Coatings

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US Patent:
51964716, Mar 23, 1993
Filed:
Nov 19, 1990
Appl. No.:
7/615557
Inventors:
Subramaniam Rangaswamy - Rochester Hills MI
Robert A. Miller - Oak Park MI
Assignee:
Sulzer Plasma Technik, Inc. - Troy MI
International Classification:
C08K 310
US Classification:
524406
Abstract:
Thermal spray powders are characterized by the presence of a matrix-forming component, a solid lubricant component and a plastic component. Abradable coatings formed by thermal spraying the powders abrade readily to form abradable seals. The abradable coatings have a metal, metal alloy, or ceramic matrix with discrete inclusions of solid lubricant and plastic. The thermal spray powders may be prepared as mechanically fused agglomerates.
Subramaniam Janaki Rangaswamy from Rochester Hills, MI, age ~74 Get Report