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You searched for +publisher:"University of Ontario Institute of Technology" +contributor:("Ham, Marnie"). Showing records 1 – 2 of 2 total matches.

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University of Ontario Institute of Technology

1. Zak, Katarzyna. Experimental study of applying grooves on semi-tubular blank sheet metal using incremental sheet forming.

Degree: 2013, University of Ontario Institute of Technology

Incremental sheet forming (ISF) was a flexible sheet metal forming process which utilized a variety of forming tools, materials, and dies. ISF was implemented to develop a series of column covers which visually replicated the style of Doric columns. They were produced experimentally out of AA3003-H14. The results from executing various toolpaths strategies were discussed. This research introduced to the ISF field deforming non-planar material, using higher strength alloys, forming previously strained material, and applying multiple grooves. The toolpath strategies employed different configurations of the groove forming order, tool utilization and number of passes. Forming successive grooves distorted the previously made grooves. It was shown that the order of forming grooves significantly affected the shape accuracy. After forming nine grooves, the springback increased the part span by an average of 33%. It was a 2-6% increase from the parts formed with five grooves. This demonstrated a significant amount of springback. Advisors/Committee Members: Ham, Marnie.

Subjects/Keywords: Incremental sheet forming; Sheet metal forming; ISF; Architectural products; Manufacturing

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Zak, K. (2013). Experimental study of applying grooves on semi-tubular blank sheet metal using incremental sheet forming. (Thesis). University of Ontario Institute of Technology. Retrieved from http://hdl.handle.net/10155/365

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Zak, Katarzyna. “Experimental study of applying grooves on semi-tubular blank sheet metal using incremental sheet forming.” 2013. Thesis, University of Ontario Institute of Technology. Accessed November 13, 2019. http://hdl.handle.net/10155/365.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Zak, Katarzyna. “Experimental study of applying grooves on semi-tubular blank sheet metal using incremental sheet forming.” 2013. Web. 13 Nov 2019.

Vancouver:

Zak K. Experimental study of applying grooves on semi-tubular blank sheet metal using incremental sheet forming. [Internet] [Thesis]. University of Ontario Institute of Technology; 2013. [cited 2019 Nov 13]. Available from: http://hdl.handle.net/10155/365.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zak K. Experimental study of applying grooves on semi-tubular blank sheet metal using incremental sheet forming. [Thesis]. University of Ontario Institute of Technology; 2013. Available from: http://hdl.handle.net/10155/365

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


University of Ontario Institute of Technology

2. Fatima, Mariam. Development of an actuation system for a specialized fixture: providing two degrees of freedom for single point incremental forming.

Degree: 2013, University of Ontario Institute of Technology

In this thesis, an actuation system is developed for a Two-Axis Gyroscopic (TAG) adapter. This adapter is a fixture with two auxiliary axes which is used for the Single Point Incremental Forming (SPIF) technique to enhance a three-axis mill to have five-axis capabilities. With five-axis mill capabilities, variable angles between line segments of the toolpath and the tool can be obtained. To achieve specialized angles between a line segment and the SPIF tool, the sheet is rotated. Inverse kinematic equations for the TAG adapter are derived to calculate the required rotations for the TAG adapter???s auxiliary axes for a line segment of a toolpath. If the next line segment requires a different orientation of the sheet, the sheet is rotated while the tool follows the rotation of the sheet to maintain its position at the connecting point of the line segments of the toolpath. Five equations of motions are derived to calculate the three translations of the mill and two rotations of the TAG adapter???s frames, during forming. A toolpath execution algorithm is implemented in MATLAB which uses the five equations of motion to execute a toolpath. The algorithm generates an array of data points that can be used by a Computer Numerically Controlled (CNC) machine to follow a desired path. A visual representation for the execution of the toolapth is implemented in MATLAB and is used to illustrate the successful completion of a toolpath. A computer controlled motor system is selected and tested in this thesis which will ultimately be integrated with a worm gear system and a CNC machine to develop a full CNC actuation system. Advisors/Committee Members: Milman, Ruth, Ham, Marnie.

Subjects/Keywords: Single point incremental forming (SPIF); Toolpath; Five-axis mill; Inverse kinematics; Frame of reference

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Fatima, M. (2013). Development of an actuation system for a specialized fixture: providing two degrees of freedom for single point incremental forming. (Thesis). University of Ontario Institute of Technology. Retrieved from http://hdl.handle.net/10155/311

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Fatima, Mariam. “Development of an actuation system for a specialized fixture: providing two degrees of freedom for single point incremental forming.” 2013. Thesis, University of Ontario Institute of Technology. Accessed November 13, 2019. http://hdl.handle.net/10155/311.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Fatima, Mariam. “Development of an actuation system for a specialized fixture: providing two degrees of freedom for single point incremental forming.” 2013. Web. 13 Nov 2019.

Vancouver:

Fatima M. Development of an actuation system for a specialized fixture: providing two degrees of freedom for single point incremental forming. [Internet] [Thesis]. University of Ontario Institute of Technology; 2013. [cited 2019 Nov 13]. Available from: http://hdl.handle.net/10155/311.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Fatima M. Development of an actuation system for a specialized fixture: providing two degrees of freedom for single point incremental forming. [Thesis]. University of Ontario Institute of Technology; 2013. Available from: http://hdl.handle.net/10155/311

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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