US3004336A - Method of reconditioning worn-out surfaces of aluminum alloy pistons - Google Patents

Method of reconditioning worn-out surfaces of aluminum alloy pistons Download PDF

Info

Publication number
US3004336A
US3004336A US845742A US84574259A US3004336A US 3004336 A US3004336 A US 3004336A US 845742 A US845742 A US 845742A US 84574259 A US84574259 A US 84574259A US 3004336 A US3004336 A US 3004336A
Authority
US
United States
Prior art keywords
aluminum alloy
aluminum
coating
reconditioning
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US845742A
Inventor
Harijs B Timuska
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US845742A priority Critical patent/US3004336A/en
Application granted granted Critical
Publication of US3004336A publication Critical patent/US3004336A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/04—Resilient guiding parts, e.g. skirts, particularly for trunk pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/10—Pistons  having surface coverings
    • F02F3/105—Pistons  having surface coverings the coverings forming a double skirt
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49249—Piston making
    • Y10T29/4925—Repairing, converting, servicing or salvaging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49249—Piston making
    • Y10T29/49256—Piston making with assembly or composite article making
    • Y10T29/49263—Piston making with assembly or composite article making by coating or cladding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49746—Repairing by applying fluent material, e.g., coating, casting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49982—Coating
    • Y10T29/49986—Subsequent to metal working

Definitions

  • This invention relates to the reconditioning of wornout surfaces of pistons, bearings, 'fuel injection pump bodies, and the like, and, more particularly, to reconditioning of aluminum alloy .products such as aluminum alloy pistons.
  • Another disadvantage is that the alloy or metal removed from the piston during the grinding procedure, attaches itself to the grinding implement (grinding wheel), tending to score the surface of the piston.
  • FIG. 1 is a plan view of a piston prepared for reconditioning according to the method embodied in this invention.
  • FIG. 2 is a vertical side elevaion of the piston shown in FIG. l.
  • FIG. 3 is a sectional partial plan view of a piston reconditioned by the method embodied in this invention.
  • FIG. 4 is a mid-vertical sectional Vside elevation of the piston shown in FIG. 3.
  • FIG. l and FIG. 2 a piston 1 that has been thoroughly cleaned of grease or the like is shown, with a layer of approximately 60 thousandths of an inch removed from the diameter of the skirt 2 of piston 1, for instance, by turning on a lathe, for the axial length of the skirt that requires reconditioning.
  • a series of annular grooves 4 are thereafter cut into the turned surface to a depth of about 20 thousandths of an inch, and a width of about 1A@ of an inch, the
  • grooves 4 being spaced approximately Vs of an inch apart for the Whole length of the turned surface 3.
  • the piston is thereafter ready to be metallized withan 'aluminum alloy adapted to lill up the thus prepared surface to a little over 'the required diameter of the finished piston, which thereafter may be ground to the required diameter.
  • jthe piston illustrated in FIG. 1 and FIG. 2 is shown after above-mentioned prepared surface has been filled out with aluminum alloy 5, having a silicon content of the order of 12%; or a silicon content of about 8% and a copper content of about 4%, and restored -to the required diameter by, for instance, grinding on surface 6.
  • an aluminum alloy part such as, for instance, a piston can be satisfactorily reconditioned, to give a smooth and even a polished finish when ground, upon the aluminum alloy used to build up the surface of a worn-out piston containing a silicon content in the order of 12%; or a silicon content of about 8% and a copper content of about 4%.
  • Utilization of this invention is not limited to pistons, but may be applied to a variety of other aluminum alloy products such as, for instance, truck engine bearings, aluminum wheels for trailers, fuel injection pump bodies, etc. without prejudicing the novelty of this invention.
  • a method of reconditioning the surface of an aluminum body including the steps of thoroughly cleaning the surface of the said aluminum body, removing a layer of the cleaned surface by machining, cutting spaced annular grooves into said machined surface, knurling the uncut portions of said machined surface, spraying a thin coating of steel upon the said knurled and grooved surface, spraying a coating of aluminum alloy having a silicon content of about 8% and a copper content of about 4% upon the sprayed coating of steel, said aluminum alloy coating filling said grooves and building up said aluminum body to dimensions larger than the original dimensions of said body, and reducing said larger dimensions by machining the surfaces of the sprayed coating of aluminum alloy to reproduce the original shape of said aluminum body.
  • a method of reconditioning the surface of an aluminum body including the steps of thoroughly cleaning the surface of the said aluminum body, removing a layer of the cleaned surface by machining, cutting spaced annular grooves into said machined surface, knurling the uncut portions of said machined surface, spraying a thin coating of steel upon the said knurled and grooved surface, spraying a coating of aluminum alloy having a silicon content of 12% upon the sprayed coating of steel, said aluminum alloy coating iilling said grooves and building up said aluminum body to dimensions larger than the orginal dimensions of said body, and reducing said larger dimensions by machining the surfaces of the sprayed coating of aluminum alloy to reproduce the original shape of said aluminum body.
  • a method of reconditioning the surface of an aluminum body including the steps of thoroughly cleaning the surface of the said aluminum body, removing a layer of the cleaned surface by machining, cutting spaced annular grooves into said machined surface, knurling the uncut portions of said machined surface, spraying a thin coating of steel upon the said knurled and grooved surface, spraying a coating of aluminum alloy having a silicon coutent of about 8% and a copper content of about 4% upon the sprayed coating of steel, said aluminum alloy coating iilling said grooves and building up said aluminum body to dimensions larger than the original dimensions, and grinding the surfaces of the sprayed coating of aluminum alloy to reproduce to original shape of the said aluminum body.
  • a method of reconditioning the surface of an aluminum body including the steps of thoroughly cleaning the surface of the said aluminum body, removing a layer of the cleaned surface by machining, cutting spaced annular grooves into said machined surface, knurling the uncut portionsof said machined surface, spraying a thin coating ofV steel upon the said knurled and grooved surface, spraying a coating of aluminum alloy having a ⁇ silicon content of 12% upon the sprayed coating of steel, said aluminum alloy coating illing said grooves and building up said aluminum body to dimensions larger than the original dimensions, and grinding the surfaces of the sprayed coating of aluminum alloy to reproduce the original Ashape'of the said aluminum body.

Description

Oct. 17, 1961 H. B. rlMusKA 3,004,335
METHOD OF RECONDITIONING WORN-OUT SURFACES 0F' ALUMINUM ALLOY PISTONS Filed oct. 12. 1959 w m .y A v .0. 3 A v A u. v.
INVENTOR United States Patent O ice 3,004,336 METHOD F -RECONDITIONING 'WORN-GUT lSUR- FACES 0F ALUMINUM ALLOY PISTONS Ha'rijs B. Timu'ska, '71 Pinta'il Crescent, 'Doh Mills,
, Y Ontario, Canada l Filed Oct. 12, 1959, Ser. No. 845,742 4Claims. '(Cl. 253-401) This invention relates to the reconditioning of wornout surfaces of pistons, bearings, 'fuel injection pump bodies, and the like, and, more particularly, to reconditioning of aluminum alloy .products such as aluminum alloy pistons.
It is general practice to recondition aluminum alloy pistons used, for instance, in engines, by metallizing (spraying) the worn-out surfaces of the piston with a conventional aluminum alloy, defined as metallizing aluminum alloy. Surfaces sprayed in this manner provide the disadvantage that they cannot be easily or satisfactorily worked, for instance, by machining or grinding, in order to reduce, for instance, a metallized piston to its intended diameter. Such conventional aluminum alloy does not bond itself suiiiciently well to the piston and is apt in part to peel olf when the piston is being ground.
Another disadvantage is that the alloy or metal removed from the piston during the grinding procedure, attaches itself to the grinding implement (grinding wheel), tending to score the surface of the piston.
It is the object of this invention to provide an aluminum alloy adapted to be attached to the worn-out surface of an aluminum alloy part such as, for instance, a piston, by being sprayed thereon through the conventional method of metallizing, said aluminum alloy being adapted to provide a smooth and even a polished nish when ground.
It is furthermore an object of this invention to provide a method for reconditioning worn-out surfaces of aluminum alloys parts such as pistons in which the aluminum alloy utilized to build up the wom-down surface i-s adapted to bond itself so intimately to the base material of the piston, that peeling oi during pursuant grinding operation is eliminated.
It is another object of this invention to provide a method of reconditioning worn-out surfaces of aluminum alloy parts such as pistons, in which the aluminum alloy utilized in building up the worn-out surface is not apt to attach itself to the grinding implement during a grinding operation, and score the surface of the piston.
These and other objects and features of this invention will become apparent when taken in conjunction with the following drawings in which:
FIG. 1 is a plan view of a piston prepared for reconditioning according to the method embodied in this invention.
FIG. 2 is a vertical side elevaion of the piston shown in FIG. l.
FIG. 3 is a sectional partial plan view of a piston reconditioned by the method embodied in this invention.
FIG. 4 is a mid-vertical sectional Vside elevation of the piston shown in FIG. 3.
Referring to FIG. l and FIG. 2, a piston 1 that has been thoroughly cleaned of grease or the like is shown, with a layer of approximately 60 thousandths of an inch removed from the diameter of the skirt 2 of piston 1, for instance, by turning on a lathe, for the axial length of the skirt that requires reconditioning.
A series of annular grooves 4 are thereafter cut into the turned surface to a depth of about 20 thousandths of an inch, and a width of about 1A@ of an inch, the
grooves 4 being spaced approximately Vs of an inch apart for the Whole length of the turned surface 3.
3,004,336 Patented Oct. l17, 196i Turned surface 3 is thereafter knurled, Whereafter the complete surface comprising knurled surfaces 3 and annular grooves f4 is coated by spraying, bythe metalli'zing procedure, with a thin layer of conventional steel, such as is procurable on the market for metallizing.
The piston is thereafter ready to be metallized withan 'aluminum alloy adapted to lill up the thus prepared surface to a little over 'the required diameter of the finished piston, which thereafter may be ground to the required diameter.
Referring `to FIG. 3 and FIG. 4, jthe piston illustrated in FIG. 1 and FIG. 2 is shown after above-mentioned prepared surface has been filled out with aluminum alloy 5, having a silicon content of the order of 12%; or a silicon content of about 8% and a copper content of about 4%, and restored -to the required diameter by, for instance, grinding on surface 6.
.I have found that an aluminum alloy part such as, for instance, a piston can be satisfactorily reconditioned, to give a smooth and even a polished finish when ground, upon the aluminum alloy used to build up the surface of a worn-out piston containing a silicon content in the order of 12%; or a silicon content of about 8% and a copper content of about 4%.
The surface of such an aluminum alloy will, upon being ground down to the required diameter, be able -to attain a high polish.
Utilization of this invention is not limited to pistons, but may be applied to a variety of other aluminum alloy products such as, for instance, truck engine bearings, aluminum wheels for trailers, fuel injection pump bodies, etc. without prejudicing the novelty of this invention.
The embodiments of the invention in which an exclusive property or privilege is claimed are deiined as follows:
l. A method of reconditioning the surface of an aluminum body including the steps of thoroughly cleaning the surface of the said aluminum body, removing a layer of the cleaned surface by machining, cutting spaced annular grooves into said machined surface, knurling the uncut portions of said machined surface, spraying a thin coating of steel upon the said knurled and grooved surface, spraying a coating of aluminum alloy having a silicon content of about 8% and a copper content of about 4% upon the sprayed coating of steel, said aluminum alloy coating filling said grooves and building up said aluminum body to dimensions larger than the original dimensions of said body, and reducing said larger dimensions by machining the surfaces of the sprayed coating of aluminum alloy to reproduce the original shape of said aluminum body.
2. A method of reconditioning the surface of an aluminum body including the steps of thoroughly cleaning the surface of the said aluminum body, removing a layer of the cleaned surface by machining, cutting spaced annular grooves into said machined surface, knurling the uncut portions of said machined surface, spraying a thin coating of steel upon the said knurled and grooved surface, spraying a coating of aluminum alloy having a silicon content of 12% upon the sprayed coating of steel, said aluminum alloy coating iilling said grooves and building up said aluminum body to dimensions larger than the orginal dimensions of said body, and reducing said larger dimensions by machining the surfaces of the sprayed coating of aluminum alloy to reproduce the original shape of said aluminum body.
3. A method of reconditioning the surface of an aluminum body including the steps of thoroughly cleaning the surface of the said aluminum body, removing a layer of the cleaned surface by machining, cutting spaced annular grooves into said machined surface, knurling the uncut portions of said machined surface, spraying a thin coating of steel upon the said knurled and grooved surface, spraying a coating of aluminum alloy having a silicon coutent of about 8% and a copper content of about 4% upon the sprayed coating of steel, said aluminum alloy coating iilling said grooves and building up said aluminum body to dimensions larger than the original dimensions, and grinding the surfaces of the sprayed coating of aluminum alloy to reproduce to original shape of the said aluminum body.
4. A method of reconditioning the surface of an aluminum body including the steps of thoroughly cleaning the surface of the said aluminum body, removing a layer of the cleaned surface by machining, cutting spaced annular grooves into said machined surface, knurling the uncut portionsof said machined surface, spraying a thin coating ofV steel upon the said knurled and grooved surface, spraying a coating of aluminum alloy having a `silicon content of 12% upon the sprayed coating of steel, said aluminum alloy coating illing said grooves and building up said aluminum body to dimensions larger than the original dimensions, and grinding the surfaces of the sprayed coating of aluminum alloy to reproduce the original Ashape'of the said aluminum body.
l v References Citedtin the file of this patent UNITED STATES'PATENTS

Claims (1)

1. A METHOD OF RECONDITIONING THE SURFACE OF AN ALUMINUM BODY INCLUDING THE STEPS OF THROUGHLY CLEANING THE SURFACE OF THE SAID ALUMINUM BODY, REMOVING A LAYER OF THE CLEANED SURFACE BY MACHINING, SUCTING SPACED ANNULAR GROOVES INTO SAID MACHINED SURFACE, KNURLING THE UNCUT PORTIONS OF SAID MACHINED SURFACE, SPRAYING A THIN COATING OF STEEL UPON THE SAID KNURLED AND GROOVED SURFACE, SPRAYING A COATING OF ALUMINUM ALLOY HAVING A SILICON CONTENT OF ABOUT 8% AND A COPPER CONTENT OF ABOUT 4% UPON THE SPRAYED COATING OF STEET, SAID ALUMINUM ALLOY COATING FILLING SAID GROOVES AND BUILDING UP SAID ALUMINUM BODY TO DIMENSIONS LARGER THAN THE OIGINAL DIMENSIONS OF SAID BODY, AND REDUCING SAID LARGER DIMENSIONS BY MACHINING THE SURFACES OF THE SPRAYED COATILNG OF ALUMINUM ALLOY TO REPRODUCE THE ORIGINAL SHAPE OF SAID ALUMINUM BODY.
US845742A 1959-10-12 1959-10-12 Method of reconditioning worn-out surfaces of aluminum alloy pistons Expired - Lifetime US3004336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US845742A US3004336A (en) 1959-10-12 1959-10-12 Method of reconditioning worn-out surfaces of aluminum alloy pistons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US845742A US3004336A (en) 1959-10-12 1959-10-12 Method of reconditioning worn-out surfaces of aluminum alloy pistons

Publications (1)

Publication Number Publication Date
US3004336A true US3004336A (en) 1961-10-17

Family

ID=25295999

Family Applications (1)

Application Number Title Priority Date Filing Date
US845742A Expired - Lifetime US3004336A (en) 1959-10-12 1959-10-12 Method of reconditioning worn-out surfaces of aluminum alloy pistons

Country Status (1)

Country Link
US (1) US3004336A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359834A (en) * 1965-12-28 1967-12-26 Everett F Armstrong Method and apparatus for presetting knives
US3667113A (en) * 1970-04-17 1972-06-06 Morris Philip A knitting machine needle bed
US3711310A (en) * 1971-07-26 1973-01-16 United Aircraft Corp Repair process for aluminum and magnesium articles
US3890950A (en) * 1973-10-02 1975-06-24 Megatech Corp Piston lubricating
US3956973A (en) * 1972-07-11 1976-05-18 Basic Aluminum Castings Company Die casting machine with piston positioning control
US4155152A (en) * 1977-12-12 1979-05-22 Matthew Bernardo Method of restoring the shrouds of turbine blades
US4291448A (en) * 1977-12-12 1981-09-29 Turbine Components Corporation Method of restoring the shrouds of turbine blades
US4986231A (en) * 1989-05-04 1991-01-22 Outboard Marine Corporation Piston with graphite fiber mesh
US5215243A (en) * 1990-08-31 1993-06-01 Electric Power Research Institute, Inc. Hot isostatic bonding process for repairing shafts
US5450784A (en) * 1993-09-28 1995-09-19 Detroit Diesel Corporation Electroplated piston skirt for improved scuff resistance
US5609776A (en) * 1994-12-23 1997-03-11 Novapax Kunststofftechnik Steiner Gmbh & Co. Kg Method of repairing moulds made of aluminium
US6322730B1 (en) * 2000-03-20 2001-11-27 William R. Wachtler Method of repairing damaged metal surfaces
US20100058570A1 (en) * 2007-03-13 2010-03-11 Polyslus AG Method for reconditioning a used grinding roller
CN102418619A (en) * 2011-12-30 2012-04-18 湖南江滨机器（集团）有限责任公司 Piston
US20140166513A1 (en) * 2012-12-19 2014-06-19 Caterpillar, Inc. Used Piston Processing And Repair Strategies For Populating Replacement Piston Inventory
US20170057023A1 (en) * 2015-08-26 2017-03-02 Caterpillar Inc. Piston and Method of Piston Remanufacturing
DE112012003224B4 (en) 2011-08-04 2023-02-09 Caterpillar Inc. Pistons for an internal combustion engine and method therefor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1947493A (en) * 1931-07-17 1934-02-20 Rose Engle Company Coating of machine elements
US2053923A (en) * 1936-06-23 1936-09-08 Andrew H Stewart Glass articles and method of making the same
US2752668A (en) * 1953-02-25 1956-07-03 Alco Products Inc Method of salvaging pistons
US2771328A (en) * 1956-02-27 1956-11-20 Sterling Aluminum Products Inc Piston ring groove protector
US2775811A (en) * 1955-05-19 1957-01-01 James G Wilson Methods for forming contact surfaces
US2793922A (en) * 1953-05-07 1957-05-28 Marshall G Whitfield Light metal piston with reinforcement and the like

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1947493A (en) * 1931-07-17 1934-02-20 Rose Engle Company Coating of machine elements
US2053923A (en) * 1936-06-23 1936-09-08 Andrew H Stewart Glass articles and method of making the same
US2752668A (en) * 1953-02-25 1956-07-03 Alco Products Inc Method of salvaging pistons
US2793922A (en) * 1953-05-07 1957-05-28 Marshall G Whitfield Light metal piston with reinforcement and the like
US2775811A (en) * 1955-05-19 1957-01-01 James G Wilson Methods for forming contact surfaces
US2771328A (en) * 1956-02-27 1956-11-20 Sterling Aluminum Products Inc Piston ring groove protector

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359834A (en) * 1965-12-28 1967-12-26 Everett F Armstrong Method and apparatus for presetting knives
US3667113A (en) * 1970-04-17 1972-06-06 Morris Philip A knitting machine needle bed
US3711310A (en) * 1971-07-26 1973-01-16 United Aircraft Corp Repair process for aluminum and magnesium articles
US3956973A (en) * 1972-07-11 1976-05-18 Basic Aluminum Castings Company Die casting machine with piston positioning control
US3890950A (en) * 1973-10-02 1975-06-24 Megatech Corp Piston lubricating
US4155152A (en) * 1977-12-12 1979-05-22 Matthew Bernardo Method of restoring the shrouds of turbine blades
US4291448A (en) * 1977-12-12 1981-09-29 Turbine Components Corporation Method of restoring the shrouds of turbine blades
US4986231A (en) * 1989-05-04 1991-01-22 Outboard Marine Corporation Piston with graphite fiber mesh
US5215243A (en) * 1990-08-31 1993-06-01 Electric Power Research Institute, Inc. Hot isostatic bonding process for repairing shafts
US5450784A (en) * 1993-09-28 1995-09-19 Detroit Diesel Corporation Electroplated piston skirt for improved scuff resistance
US5609776A (en) * 1994-12-23 1997-03-11 Novapax Kunststofftechnik Steiner Gmbh & Co. Kg Method of repairing moulds made of aluminium
US6322730B1 (en) * 2000-03-20 2001-11-27 William R. Wachtler Method of repairing damaged metal surfaces
US20100058570A1 (en) * 2007-03-13 2010-03-11 Polyslus AG Method for reconditioning a used grinding roller
US8316543B2 (en) * 2007-03-13 2012-11-27 Polysius Ag Method for reconditioning a used grinding roller
DE112012003224B4 (en) 2011-08-04 2023-02-09 Caterpillar Inc. Pistons for an internal combustion engine and method therefor
CN102418619A (en) * 2011-12-30 2012-04-18 湖南江滨机器（集团）有限责任公司 Piston
US20140166513A1 (en) * 2012-12-19 2014-06-19 Caterpillar, Inc. Used Piston Processing And Repair Strategies For Populating Replacement Piston Inventory
US9550256B2 (en) * 2012-12-19 2017-01-24 Caterpiller Inc. Used piston processing and repair strategies for populating replacement piston inventory
US20170057023A1 (en) * 2015-08-26 2017-03-02 Caterpillar Inc. Piston and Method of Piston Remanufacturing

Similar Documents

Publication Publication Date Title
US3004336A (en) Method of reconditioning worn-out surfaces of aluminum alloy pistons
US2905512A (en) Coated piston ring
US2588422A (en) Application of spray metal linings for aluminum engine cylinders of or for reciprocating engines
US1947493A (en) Coating of machine elements
BE485463A (en)
US2241789A (en) Bearings and method of producing the same
US6322730B1 (en) Method of repairing damaged metal surfaces
EP0106507A3 (en) Means and methods for abrading a work surface
US3368263A (en) Method of making gears and the like
US2075995A (en) Gearing and method of conditioning the same
DE3210495A1 (en) Method of producing bearing surfaces
US2198074A (en) Method of making bearings
US2242440A (en) Bearing
US1967020A (en) Antifriction tool
US3415635A (en) Method of making a grinding member
GB683404A (en) Improvements in and relating to bearings
FR2973722A1 (en) Method for honing inner surface of cylinder casing barrel of heat engine of car, involves inserting electrode inside barrel, where surface of barrel is subjected to rough honing before being honed by sinker electric discharge machining
JP2000024838A (en) Manufacture of forging die for gear
JPS6228172A (en) Formation of grindstone
JPS6144170A (en) Surface working method of sliding member
RU50904U1 (en) GRINDING TOOL
GB930596A (en) Improvements relating to grinding wheels particularly for gear de-burring machines
EP1110671A3 (en) Dressing, honing and grinding tool
SU1222505A1 (en) Method of grinding metals and alloys thereof
JPH0513772B2 (en)