Howard D Blair

age ~64

from Detroit, MI

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Low-Temperature, High-Strength Metal-Matrix Composite For Rapid-Prototyping And Rapid-Tooling
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US Patent:

6376098, Apr 23, 2002
Filed:

Nov 1, 1999
Appl. No.:

09/432047
Inventors:

Furqan Zafar Shaikh - Troy MI
Howard Douglas Blair - Romulus MI
Tsung-Yu Pan - Ypsilanti MI
Assignee:

Ford Global Technologies, Inc. - Dearborn MI
International Classification:

C22C 4914
US Classification:

428614, 4282931, 164 97
Abstract:

A metal matrix composite includes a plurality of fibers having an average diameter of about eight micrometers with a coating, and a metal or alloy distributed with said fibers, a fibers-to-metal or alloy ratio has a range is has a range of about 9:1 to less than about 1:1.

Method Of Directly Making Rapid Prototype Tooling Having Free-Form Shape
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US Patent:

6602545, Aug 5, 2003
Filed:

Jul 25, 2000
Appl. No.:

09/624926
Inventors:

Furqan Z Shaikh - Troy MI
Howard Douglas Blair - Romulus MI
Tsung-Yu Pan - Ypsilanti MI
Assignee:

Ford Global Technologies, L.L.C. - Dearborn MI
International Classification:

B05D 106
US Classification:

427191, 427201, 427205, 419 5, 419 6, 419 8
Abstract:

A method and apparatus for directly making rapid prototype tooling from a computer model having a free-form shape. The method steps comprise essentially: (a) machining a soft metal tooling base so as to contour at least one free-form surface in conformity with the computer model; (b) cold-gas dynamic spraying the contoured surface to form superimposed impact welded metal particle layers, the layers consisting of at least one thermal management under-layer comprising primarily copper, and at least an outer wear resistant layer comprising primarily tool steel.

Gas-Dynamic Cold Spray Lining For Aluminum Engine Block Cylinders
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US Patent:

20020073982, Jun 20, 2002
Filed:

Dec 16, 2000
Appl. No.:

09/739087
Inventors:

Furqan Shaikh - Troy MI, US
Howard Blair - Romulus MI, US
Rodney Tabaczynski - Northville MI, US
Tsung-Yu Pan - Ypsilanti MI, US
International Classification:

F02D041/00
B23P011/00
US Classification:

123/688000, 029/888060
Abstract:

A method and apparatus for gas-dynamic cold spraying a liner in a cylinder of an aluminum engine block is provided. The gas-dynamic cold spray liner allows the aluminum engine block to have a hardened cylinder surface without the induction of residual hoop stress within the aluminum engine block

Method Of Making A Densified Silicon Nitride/Oxynitride Composite
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US Patent:

44965036, Jan 29, 1985
Filed:

Jul 19, 1983
Appl. No.:

6/527911
Inventors:

Andre Ezis - Grosse Ile MI
Elaine C. Beckwith - Riverview MI
Howard D. Blair - Romulus MI
Assignee:

Ford Motor Company - Dearborn MI
International Classification:

C04B 3532
US Classification:

264 56
Abstract:

A method of making a densified silicon nitride/oxynitride composite is disclosed. The method comprises: (a) shaping a substantially homogeneous powder mixture of silicon nitride, 6-18% yttrium silicon oxynitride of the Y. sub. 10 Si. sub. 6 O. sub. 24 N. sub. 2 phase in an amount to form a viscous solution with at least a portion of the silicon nitride, and (b) densifying the body by heat fusion, with or without the use of mechanical pressure, to a density and a dimension required for the final product.

Process For Joining Silicon Nitride Based Ceramic Bodies
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US Patent:

43243568, Apr 13, 1982
Filed:

Mar 29, 1979
Appl. No.:

6/025148
Inventors:

Howard D. Blair - Romulus MI
Morton E. Milberg - Southfield MI
Assignee:

Ford Motor Company - Dearborn MI
International Classification:

B23K 3100
B23K 3524
B23K 3538
US Classification:

228193
Abstract:

A method of joining silicon nitride based ceramic bodies is disclosed. At least one interfacing surface of shaped bodies (one or both of which may be hot-pressed or reaction-sintered) receives a layer of metallic aluminum based material. The bodies with the metallic aluminum based material therebetween are subjected to heating at 1400. degree. 1900. degree. C. for a period typically 0. 5-2 hours in a nitriding atmosphere to effect a chemical bond consisting of a conversion of the interfacing ceramic to a Si--Al--O--N system.

Method Of Making Yttrium Silicon Oxynitrides
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US Patent:

45017239, Feb 26, 1985
Filed:

Jul 19, 1983
Appl. No.:

6/527643
Inventors:

Andre Ezis - Grosse Ile MI
Howard D. Blair - Romulus MI
Assignee:

Ford Motor Company - Dearborn MI
International Classification:

C04B 3558
C01F 1700
US Classification:

423263
Abstract:

A method of making a powder additive consisting of yttrium silicon oxynitrides, preferably of the Y. sub. 10 Si. sub. 6 O. sub. 24 N. sub. 2 or YSiO. sub. 2 N phases, is disclosed. Stoichiometric amounts of Y. sub. 2 O. sub. 3, SiO. sub. 2, and Si. sub. 3 N. sub. 4 are mixed and arranged in intimate reactive contact, the amounts being to form a desired oxynitride according to the formula Y. sub. a Si. sub. b O. sub. c N. sub. d, where a, b, c and d represent the required element parts of the compound in equilibrium with the mixture elements. The mixture is heated in an inert atmosphere to a temperature and for a time sufficient to convert the stoichiometric amounts of the mixture to the desired yttrium silicon oxynitride. The heat agglomerated mixture is then ground to a powder.

Method Of Enhancing A Joined Metal Assembly
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US Patent:

61095060, Aug 29, 2000
Filed:

Dec 23, 1998
Appl. No.:

9/220024
Inventors:

Howard Douglas Blair - Romulus MI
John Michael Nicholson - Romulus MI
Tsung-Yu Pan - Ypsilanti MI
Assignee:

Ford Global Technologies, Inc. - Dearborn MI
International Classification:

B23K 3102
US Classification:

228175
Abstract:

A method of enhancing a joint in a metal assembly. At least two metal members are joined together. Each member has a joining surface that mates with the other joining surface. The metal members are contacted against one another such that the joining surfaces mate. The mated joining surfaces are welded together at multiple locations. The welding process leaves a small gap between the metal members between these welding locations. Heat is applied to the joining surfaces adjacent to the gap. A solder is applied to the heated joining surfaces. The joining surfaces cause the solder to melt and to be wicked into the gap by the capillary force. The solder fills the length, width and thickness of the gap and joins the metal members together with a metallurgical bond. The entire joint including areas between the welding locations becomes joined.

Method Of Making Densified Si.sub.3 N.sub.4 /Oxynitride Composite With Premixed Silicon And Oxygen Carrying Agents
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US Patent:

45101078, Apr 9, 1985
Filed:

Jul 19, 1983
Appl. No.:

6/523196
Inventors:

Andre Ezis - Grosse Ile MI
Howard D. Blair - Romulus MI
Assignee:

Ford Motor Company - Dearborn MI
International Classification:

C04B 3558
US Classification:

264 65
Abstract:

A method is disclosed for making a more densified silicon nitride comprising object under less stringent heating conditions without sacrificing physical properties. A mixture of silicon powder, 6-18% yttrium silicon oxynitride (a major proportion of which is the Y. sub. 10 Si. sub. 6 O. sub. 24 N. sub. 2 phase), 0. 4-3% Al. sub. 2 O. sub. 3, and possibly up to 2% of an oxynitride forming oxide (Y. sub. 2 O. sub. 3) is compacted, nitrided, and sintered to produce a silicon nitride/YSiO. sub. 2 N comprising object of relatively high density.