Patents by Inventor Rachid GUIASSA
Rachid GUIASSA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12276962Abstract: A method of machining a feature in a component using a machine having a support rotatable about a rotation axis and having a cutting tool movable relative to the component, the component being mounted on the support for rotation about a central axis of the component, the method includes: determining coordinates of at least three points on a reference surface of the component, the at least three points being circumferentially offset from one another relative to the central axis; determining an angular correction to apply to the cutting tool based on the coordinates of the at least three points; and machining the feature in the component using the cutting tool angled with the angular correction.Type: GrantFiled: January 21, 2022Date of Patent: April 15, 2025Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Rachid Guiassa, Visal Ing
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Publication number: 20250114863Abstract: A CNC assembly includes a machining system and a controller. The machining system includes at least one machining tool. The controller is configured to measure a surface deviation of a drilling surface of the component from a 3D component model for the component using a position measurement probe to identify a position of the drilling surface at a plurality of points, determine a compensation vector of a nominal hole for the drilling surface using the measured surface deviation, determine a compensated laser source stand-off position and a compensated laser source orientation for the nominal hole using the determined compensation vector, position a laser source in the compensated laser source stand-off position and the compensated laser source orientation, and form a component hole in the component using the laser source by directing a laser beam to the drilling surface with the laser source in the compensated laser source stand-off position and the compensated laser source orientation.Type: ApplicationFiled: October 6, 2023Publication date: April 10, 2025Inventors: Rachid Guiassa, Carl Gagne
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Publication number: 20250116513Abstract: A machining system includes a machining assembly, one or more dimensional measurement devices, and a controller. The machining assembly includes an arm and a machining tool. The arm is operable to move the machining tool relative to a workpiece. Each dimensional measurement device of the one or more dimensional measurement devices is operable to measure one or both of a position or a dimension of the workpiece.Type: ApplicationFiled: October 6, 2023Publication date: April 10, 2025Inventors: Serafettin Engin, Rachid Guiassa
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Patent number: 12265369Abstract: The method can include at a controller, controlling a manufacturing machine to perform a manufacturing process step for a given feature of a plurality of features of a part, including executing instructions causing the manufacturing machine to perform the manufacturing process step, the instructions comprising an identifier of the given feature and a definition of the manufacturing process step to be executed in relation to the given feature; at the controller, during the manufacturing process step, generating manufacturing data from the manufacturing process step; and by the controller, associating the manufacturing data to the identifier of the given feature in a non-transitory memory.Type: GrantFiled: November 23, 2021Date of Patent: April 1, 2025Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Changsheng Guo, Clément Drouin Laberge, Rachid Guiassa, Denis Hardy, Philippe Melancon
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Patent number: 12214454Abstract: A machining system includes a machining assembly, a rotary table, a dimensional measurement assembly, and a controller. The controller is configured to control the dimensional measurement assembly to identify first position and a first orientation for a point on a surface of a workpiece with at least one dimensional measurement sensor, determine a first machine-workpiece vector and a first rotation-workpiece vector for the point, control the rotary table to rotate the workpiece about a rotational axis by a rotation angle, calculate a second position and a second orientation for the point subsequent to rotating the workpiece, update a workpiece position and a workpiece orientation in a part coordinate system (PCS) for the workpiece using the second position and the second orientation, and control the machining assembly to machine the workpiece using the updated workpiece position and the updated workpiece orientation.Type: GrantFiled: November 22, 2023Date of Patent: February 4, 2025Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Rachid Guiassa, Visal Ing
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Publication number: 20240393764Abstract: The system can include a tool module executing a sequence of manufacturing process steps features of a part; a monitoring module generating manufacturing data segments describing the execution of the sequence of one or more manufacturing process steps; an associator module operable to construct one or more feature-based manufacturing data items using i) one or more sequence references indicating an order of the one or more manufacturing process steps in the sequence, and ii) an associator table having one or more feature identifiers of the one or more features associated to corresponding ones of the one or more sequence references, including matching the one or more manufacturing data segments with the one or more feature identifiers based on the one or more sequence references.Type: ApplicationFiled: May 26, 2023Publication date: November 28, 2024Inventors: Philippe MORIN, Fabrizio ROJOAS, Rachid GUIASSA
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Publication number: 20240391037Abstract: A gearbox repair system includes at least one repair tool and a controller. The controller is configured to control the at least one repair tool to repair a gearbox housing including a first housing body and a second housing body by: controlling the at least one repair tool to repair the first housing body at a first hole of the first housing body by removing a first body material of the first housing body at the first hole, controlling the at least one repair tool to identify a first actual position of the first hole, identifying a compensation vector for the first hole based on the first actual position and a first reference position for the first hole, and controlling the at least one repair tool to repair the second housing body at a second hole of the second housing body by removing a second body material at the second hole such that a second actual position of the second hole is offset from a second reference position of the second hole by the compensation vector.Type: ApplicationFiled: May 26, 2023Publication date: November 28, 2024Inventors: Rachid Guiassa, Carl Gagne, Martin Bouffard
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Patent number: 12153395Abstract: A method for calibrating a machining system includes providing the machining system which includes a base, a cantilevered arm, and a rotary table positioned at the second arm end of the cantilevered arm. The rotary table is rotatable relative to the cantilevered arm about a first axis. The first axis has a first unloaded position and a first unloaded orientation with the machining system in an unloaded condition. The method further includes installing a measurement artifact on the rotary table, measuring a first position of the measurement artifact, and installing a load on the rotary table. The first axis has a first loaded position and a first loaded orientation with the machining system in a loaded condition. The method further includes measuring a second position of the measurement artifact and determining a positional deviation of the second position from the first position.Type: GrantFiled: February 11, 2022Date of Patent: November 26, 2024Assignee: Pratt & Whitney Canada Corp.Inventors: Visal Ing, Rachid Guiassa, Joel Jean, Ghislain Hardy, Faical Ghezala
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Patent number: 11921487Abstract: A system and method for manufacturing a component is provided that includes a CNC machine tool, a correction module, and a system controller. The CMM module is controllable to determine a set of multi-axis coordinates surface points on the component. The correction module is in communication with the CMM module and stored reference inspection data. The system controller is in communication with the CNC machine tool, the correction module, and stored instructions. The instructions when executed cause the system controller to: a) control the CNC machine tool to modify a surface of the component; b) control the CMM module to determine multi-axis coordinates for surface points; c) determine surface position variances using the reference inspection data and the multi-axis coordinates; d) determine if surface position variances exceed a threshold; and e) create correction action instructions for controlling the CNC machine if surface position variances exceed the threshold.Type: GrantFiled: February 18, 2022Date of Patent: March 5, 2024Assignee: Pratt & Whitney Canada Corp.Inventors: Rachid Guiassa, Mizanur Rahman, Pierre-Alexandre Lafreniere, Martin Perron, Luc Sauve
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Patent number: 11789424Abstract: There is described a system for manufacturing a part. The system generally has a receiving area receiving said part, a first reference gauge and a second reference gauge which are subjected to common environmental conditions, said first reference gauge having a first nominal dimension and said second reference gauge having a second nominal dimension different from said first nominal dimension; a measurement device measuring dimensions of said first and second reference gauges, and measuring dimensions of said part; and a controller communicatively coupled to said measurement device, said controller determining a calibration curve by performing a mathematical fit based on said first and second nominal dimensions and said measured dimensions of said first and second reference gauges; and constructing a machine-readable dataset representative of said part, including modifying said measured dimensions of said part based on said calibration curve.Type: GrantFiled: October 9, 2020Date of Patent: October 17, 2023Assignee: PRATT & WHITNEY CANADA CORP.Inventor: Rachid Guiassa
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Publication number: 20230297062Abstract: A method of machining a feature in a component using a machine having a support rotatable about a rotation axis and having a cutting tool movable relative to the component, the component being mounted on the support for rotation about a central axis of the component, the method includes: determining coordinates of at least three points on a reference surface of the component, the at least three points being circumferentially offset from one another relative to the central axis; determining an angular correction to apply to the cutting tool based on the coordinates of the at least three points; and machining the feature in the component using the cutting tool angled with the angular correction.Type: ApplicationFiled: January 21, 2022Publication date: September 21, 2023Inventors: Rachid GUIASSA, Visal ING
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Publication number: 20230266736Abstract: A system and method for manufacturing a component is provided that includes a CNC machine tool, a correction module, and a system controller. The CMM module is controllable to determine a set of multi-axis coordinates surface points on the component. The correction module is in communication with the CMM module and stored reference inspection data. The system controller is in communication with the CNC machine tool, the correction module, and stored instructions. The instructions when executed cause the system controller to: a) control the CNC machine tool to modify a surface of the component; b) control the CMM module to determine multi-axis coordinates for surface points; c) determine surface position variances using the reference inspection data and the multi-axis coordinates; d) determine if surface position variances exceed a threshold; and e) create correction action instructions for controlling the CNC machine if surface position variances exceed the threshold.Type: ApplicationFiled: February 18, 2022Publication date: August 24, 2023Inventors: Rachid Guiassa, Mizanur Rahman, Pierre-Alexandre Lafreniere, Martin Perron, Luc Sauve
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Publication number: 20230259094Abstract: A method for calibrating a machining system includes providing the machining system which includes a base, a cantilevered arm, and a rotary table positioned at the second arm end of the cantilevered arm. The rotary table is rotatable relative to the cantilevered arm about a first axis. The first axis has a first unloaded position and a first unloaded orientation with the machining system in an unloaded condition. The method further includes installing a measurement artifact on the rotary table, measuring a first position of the measurement artifact, and installing a load on the rotary table. The first axis has a first loaded position and a first loaded orientation with the machining system in a loaded condition. The method further includes measuring a second position of the measurement artifact and determining a positional deviation of the second position from the first position.Type: ApplicationFiled: February 11, 2022Publication date: August 17, 2023Inventors: Visal Ing, Rachid Guiassa, Joel Jean, Ghislain Hardy, Faical Ghezala
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Publication number: 20230158590Abstract: A method of manufacturing a feature in a part with a cutting tool, includes machining a semi-finished shape of the feature, determining an actual position of at least one target point on a surface of the semi-finished shape, and computing a difference between the determined position of the at least one target point and a nominal position of the at least one target point on a digitized model of the part having the semi-finished shape of the feature. As a function of the difference, a correction to a position of the cutting tool on a nominal tool path to achieve the final shape of the feature from the semi-finished shape is determined, and the correction is used to define a corrected tool path. The finished shape of the feature is then machined with the cutting tool by moving the cutting tool along the corrected tool path.Type: ApplicationFiled: November 19, 2021Publication date: May 25, 2023Inventor: Rachid GUIASSA
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Publication number: 20220111479Abstract: There is described a system for manufacturing a part. The system generally has a receiving area receiving said part, a first reference gauge and a second reference gauge which are subjected to common environmental conditions, said first reference gauge having a first nominal dimension and said second reference gauge having a second nominal dimension different from said first nominal dimension; a measurement device measuring dimensions of said first and second reference gauges, and measuring dimensions of said part; and a controller communicatively coupled to said measurement device, said controller determining a calibration curve by performing a mathematical fit based on said first and second nominal dimensions and said measured dimensions of said first and second reference gauges; and constructing a machine-readable dataset representative of said part, including modifying said measured dimensions of said part based on said calibration curve.Type: ApplicationFiled: October 9, 2020Publication date: April 14, 2022Inventor: Rachid GUIASSA
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Publication number: 20220024608Abstract: A part measuring kit for a rotary table on a machine bed includes a part fixture mountable on the rotary table for retaining a part to be measured and/or an object having known dimensions. The kit further includes a measuring device mountable on the machine bed and movable relative to the rotary table for taking measurements of the part to be measured and/or the object having known dimensions, wherein the rotary table is rotatable between each taken measurement. The kit further includes a calibration offset calculator for calculating a calibration offset for the measuring device by comparing taken measurements of the object having known dimensions with the known dimensions, and correcting taken measurements of the part to be measured via the calculated calibration offset.Type: ApplicationFiled: July 23, 2020Publication date: January 27, 2022Inventors: Rachid GUIASSA, Lafleche GAGNON
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Patent number: 11230393Abstract: A part measuring kit for a rotary table on a machine bed includes a part fixture mountable on the rotary table for retaining a part to be measured and/or an object having known dimensions. The kit further includes a measuring device mountable on the machine bed and movable relative to the rotary table for taking measurements of the part to be measured and/or the object having known dimensions, wherein the rotary table is rotatable between each taken measurement. The kit further includes a calibration offset calculator for calculating a calibration offset for the measuring device by comparing taken measurements of the object having known dimensions with the known dimensions, and correcting taken measurements of the part to be measured via the calculated calibration offset.Type: GrantFiled: July 23, 2020Date of Patent: January 25, 2022Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Rachid Guiassa, Lafleche Gagnon
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Patent number: 10101722Abstract: A method of determining a radius of a cutting end of a tool for a turning machine using a touch probe is provided. One of the cutting end and the touch probe is movable relative to a reference frame having a first axis and a second axis and having a reference point trackable in the reference frame. The method comprises establishing a first contact point and recording a first coordinate of the reference point on the first axis; establishing a second contact point and recording a second coordinate of the reference point on the second axis; establishing a third contact point and recording a third coordinate of the reference point on the first axis and a fourth coordinate of the reference point on the second axis upon contact; and determining a radius of the cutting end based on the first, second, third and fourth coordinates.Type: GrantFiled: February 28, 2017Date of Patent: October 16, 2018Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Lafleche Gagnon, Rachid Guiassa, Philippe St-Jacques
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Publication number: 20170167844Abstract: A method of determining a radius of a cutting end of a tool for a turning machine using a touch probe is provided. One of the cutting end and the touch probe is movable relative to a reference frame having a first axis and a second axis and having a reference point trackable in the reference frame. The method comprises establishing a first contact point and recording a first coordinate of the reference point on the first axis; establishing a second contact point and recording a second coordinate of the reference point on the second axis; establishing a third contact point and recording a third coordinate of the reference point on the first axis and a fourth coordinate of the reference point on the second axis upon contact; and determining a radius of the cutting end based on the first, second, third and fourth coordinates.Type: ApplicationFiled: February 28, 2017Publication date: June 15, 2017Inventors: LAFLECHE GAGNON, RACHID GUIASSA, PHILIPPE ST-JACQUES
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Patent number: 9618927Abstract: A method of determining a radius of a cutting end of a tool for a turning machine using a touch probe is provided. One of the cutting end and the touch probe is movable relative to a reference frame having a first axis and a second axis and having a reference point trackable in the reference frame. The method comprises establishing a first contact point and recording a first coordinate of the reference point on the first axis; establishing a second contact point and recording a second coordinate of the reference point on the second axis; establishing a third contact point and recording a third coordinate of the reference point on the first axis and a fourth coordinate of the reference point on the second axis upon contact; and determining a radius of the cutting end based on the first, second, third and fourth coordinates.Type: GrantFiled: April 15, 2014Date of Patent: April 11, 2017Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Lafleche Gagnon, Rachid Guiassa, Philippe St-Jacques