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Recent Publications

All Publications

Recent Refereed Journal Papers

Cheong B H, Lin J and Ball A A, Modelling of the hardening characteristics for superplastic materials. Journal of Strain Analysis, 2000. 35(3): p. 149 - 157.

Loftus M and Peng Q J, An image-based fast three-dimensional modelling method for virtual manufacturing. Journal of Engineering Manufacture, Proceedings of the Institution of Mechanical Engineers Part B, 2000. 214: p. 709 - 721.

Ball A A and Zheng J J, Degree elevation for n-sided surfaces. Computer Aided Geometric Design, 2001. 18: p. 135 - 147.

Cheong B H, Lin J and Ball A A, Effects of grain-size gradients on thinning in superplastic gas-blow forming. Journal of Engineering Manufacture, Proceedings of the Institution of Mechanical Engineers Part B, 2001. 215: p. 429 - 433.

Lin J, Ball A A and Zheng J J, Approximating circular arcs by Bézier curves and its application to modelling tooling for FE forming simulations. International Journal of Machine Tools & Manufacture, 2001. 41: p. 703 - 717.

Loftus M and Wang D, A theory to support the high-speed computer numerical control machining of corner profiles. Journal of Engineering Manufacture, Proceedings of the Institution of Mechanical Engineers Part B, 2001. 216: p. 643 - 647.

Cripps R J, 'Algorithms to support point-based CADCAM', International Journal of Machine Tools and Manufacture, 2003, 43, 4, p. 425 - 432

Cheong, B H, Lin, J and Ball A A, 'Modelling the effects of grain-size gradients on

necking in superplastic forming', Journal of Materials Processing Technology, 2003, 134, p. 10 - 18.

Cripps R J and Ball A A, 'Visual assessment of free-form surfaces in CADCAM', in Computer Aided and Integrated Manufacturing Systems, Volume 3, Optimization Methods, edited by Leondes C T, 2003, World Scientific, Singapore, ISBN 981-238-981-4, p.187 - 217.

Recent Refereed Conference Papers

Tookey R M and Sargeant W, Application of point-based smoothing to the design of flying surfaces, in The Mathematics of Surfaces IX, Cipolla R and Martin R, Editors. 2000. Springer: p. 470 - 485.

Loftus M, Causes of high-speed machining irregularities, in Proceedings of MoldMaking 2002 Conference, Communication Technologies Inc, Chicago, USA: p. 126 - 142

Recent PhD Theses

Cook P R, Point-based mathematics and graphics for CADCAM, 2000.

University of Birmingham, supervised by R J Cripps.

Fisher M, Point-based mathematics for computer-aided manufacture, 2001.

University of Birmingham, supervised by A A Ball.

Howe R E, Parametric and discrete surfaces quality visulation and improvement, 2002.

University of Birmingham, supervised by R J Cripps

Li, X, Geometric Property Estimation and Segmentation in Reverse Engineering, 2004.

University of Birmingham, supervised by R J Cripps.

Wang, Enhancement of High-Speed Machining Strategies in Corner and Offset Cutting, 2005.

University of Birmingham, supervised by M Loftus.

Fan Z, A Simple Cutting Force Model for High-Speed Ball-end Milling Applications, 2005.

University of Birmingham, supervised by A A Ball

Zhu S, G2 Approximation of Generalised Cornu Spirals by Planar Bézier Curves, 2006.

University of Birmingham, supervised by R J Cripps.

Fan Z, Geometric Modelling of 5-axis Sculptured Surface Machining, 2006.

University of Birmingham, supervised by A A BAll.

Chong , Visual Assessment of Fee-Form Surface Quality, 2006.

University of Birmingham, supervised by A A BAll.

Ma X, Geometry Based Data Reduction for Planar Curves and 3D Surfaces, 2007.

University of Birmingham, supervised by R J Cripps.

Lockyer P, S, Controlling the Interpolation of NURBS Curves and Surfaces, 2007.

University of Birmingham, supervised by R J Cripps

Recent GMG Internal Reports

Cripps R J, Howe R E and Tookey R M, Geometric CADCAM: A point-based syestm,2000,GMG:99/01

Cripps R J and Cook P R, Point-based visualisation,2000,GMG:00/02

Cripps R J, Smooth planar curve interpolation,2000,GMG:00/03

Li B,Lin J and Ball A A, System development for simulating springback using ABAQUS,2001,GMG:01/01

Li B,Lin J and Ball A A, System development for simulating springback using ABAQUS User instructions,2001,GMG:01/02

Cripps R J and Mullineux G, Surface quality assessment and improvement, 2001,GMG:01/03

Deng J and Zhu S, Application of developable surfaces in CAD/CAM,2001,GMG:02/04

Bollada P C, A review of NURBS interpolation techniques for curves with boundary constraints,2002,GMG:02/01

Liu N, The influence of machining strategy and slope angle on the texture of flat surfaces machined by a ball nose cutter,2002,GMG:02/01

Liu N, Current systems to support the quality of machined parts,2002,GMG:02/03

Ball A A and Ball J V, A modified Coons patch construction,2004, Dr J Deng, GMG:04/01

Ball A A and Cader R A, Blank shape prediction for precision glass forming, 2004,GMG:04/02

Ball A A and Cader R A, Adaptations of the McCartney algorithm for flattening and unwrapping,2004,GMG:04/03

Deng J ,Ball A A and Ball J V, Flattening algorithm based on a Coons patch construction with geometric parametrisation,2004,GMG:04/

Li X and Cripps R J, IQSMethod and IMPSegmentation user manual,2004,GMG:04/05

Liu N and Loftus M,Surface finish prediction and analysis case studies, 2004,GMG:04/06

All Publications: Refereed Journal Papers

Ball A A, Simple CADCAM procedures for complex shaped components. International Journal of Production Research, 1996. 34(9): p. 2461 - 2469.

Ip W L R and Loftus M, Shaded image machining: a reverse engineering approach using computer vision techniques and analytical methods to reproduce sculptured surfaces. International Journal of Production Research, 1996. 34(7): p. 1895 -1916.

Ip W L R and Loftus M, Adaptive and compensation methods in free-form surface assessment. Journal of Engineering Manufacture, Proceedings of the Institution of Mechanical Engineers Part B, 1996. 2(10): p. 135 -145.

Tookey R and Ball A, Approximate G1 continuous interpolation of a rectangular network of rational cubic curves. Computer-Aided Design, 1996. 28(12): p. 1007 - 1016.

Li Y-M and Cripps R J, Identification of inflection points and cusps on rational curves. Computer Aided Geometric Design, 1997. 14: p.491 - 497.

Tookey R and Cripps R, Improved surface bounds based on derivatives. Computer Aided Geometric Design, 1997. 14: p. 787 - 791.

Zheng J J and Ball A A, Control point surfaces over non-four-sided areas. Computer Aided Geometric Design, 1997. 14: p. 807 - 821.

Cripps R J and Ball A A, Visual assessment of free-form surfaces in CAD/CAM. Journal of Engineering Manufacture, Proceedings of the Institution of Mechanical Engineers Part B, 1998. 212: p. 207 - 214.

Jin J Q, Loftus M and Franks I T, A method for the acquisition of users requirements in discrete manufacturing cell systems. Computer Integrated Manufacturing Systems, 1998. 11(3): p. 229 - 242.

Lin J and Ball A A, A laboratory project-based approach to integrated design. International Journal of Mechanical Engineering Education, 1998. 26(4): p. 318 - 326.

Lin J, Ball A A and Zheng J J, Surface modelling and mesh generation for simulating superplastic forming. Journal of Materials Processing Technology, 1998. 80-81: p. 613 - 619.

Peng Q J and Loftus M, An approach to determine the illumination parameters of the object surface based on optimisation and neural networks. Chinese Journal of Materials Research, 1998. 12(Suppl): p. 91 - 97.

Peng Q J and Loftus M, A new approach to reverse engineering based on vision information. International Journal of Machine Tools& Manufacture, 1998. 38(8): p. 881 - 899.

Ali J M, Tookey R M, Ball J V and Ball A A, The generalised Cornu spiral and its application to span generation. Journal of Computational and Applied Mathematics, 1999. 102: p. 37 - 47.

Korves B and Loftus M, The application of immersive virtual reality for layout lanning of manufacturing cells. Journal of Engineering Manufacture, Proceedings of the Institution of Mechanical Engineers Part B, 1999. 213: p. 87 - 91.

Peng Q J and Loftus M, Rapid prototyping based on image information in reverse design applications. Journal of Engineering Manufacture, Proceedings of the Institution of Mechanical Engineers Part B, 1999. 213: p. 317 - 322.

Cheong B H, Lin J and Ball A A, Modelling of the hardening characteristics for superplastic materials. Journal of Strain Analysis, 2000. 35(3): p. 149 - 157.

Ball A A and Zheng J J, Degree elevation for n-sided surfaces. Computer Aided Geometric Design, 2001. 18: p. 135 - 147.

Cripps R J, 'Algorithms to support point-based CADCAM', International Journal of Machine Tools and Manufacture, 2003, 43, 4, p. 425 - 432

Cheong, B H, Lin, J and Ball A A, 'Modelling the effects of grain-size gradients on necking in superplastic forming', Journal of Materials Processing Technology, 2003, 134, p. 10 - 18.

All Publications: Refereed Conference Papers

Ball A A, CAD: master or servant of engineering?, in The Mathematics of Surfaces VII, Goodman T and Martin R, Editors. 1997. Information Geometers: p. 17 - 23.

Cripps R J and Qin S, Review of multimedia CAL technologies for Higher Education, in Computer Based Learning in Science, Chapman G M, Editor. 1997: p. F1.

Liu C and Ball A A, Shape control and modification of rational cubic B-spline curves, in The Mathematics of Surfaces VII, Goodman T and Martin R, Editors. 1997. Information Geometers: p. 383 - 391.

Peng Q J and Loftus M, A new approach for tool path planning of 3D machining surfaces in reverse engineering applications, in Proceedings of 32nd International MATADOR Conference, UMIST, Kochhar A K, Editor. 1997: p. 271 - 276.

Tookey R M and Ball A A, Estimation of curvature from planar point data, in The Mathematics of Surfaces VII, Goodman T and Martin R, Editors. 1997. Information Geometers: p. 131 - 144.

Cripps R J and Howe R E, Surface visualisation and assessment using geometric parameter curves, in Advances in Manufacturing Technology XII, Baines R W, Taleb-Bendiab A and Zhao Z, Editors. 1998: p. 335 - 342.

Korves B and Loftus M, The application of immersive virtual reality for layout planning of manufacturing cells, in Advances in Manufacturing Technology XII, Baines R W, Taleb-Bendiab A and Zhao Z, Editors. 1998: p. 303 - 308.

Peng Q J and Loftus M, A fast 3D modelling approach for virtual reality environments, in Advances in Manufacturing Technology XII, Baines R W, Taleb-Bendiab A and Zhao Z, Editors. 1998: p. 309 - 314.

Peng Q J and Loftus M, Rapid prototyping based on image information in reverse design applications, Design Reuse, Engineering Design Conference, Brunel University, 1998: p. 175 - 182.

Peng Q J and Loftus M, The reverse design approach based on vision information, Mechanics in Design Conference, Nottingham Trent University, 1998. Chandos Pub. (Oxford): p. 806 - 815.

Zheng J J and Ball A A, Patterns of control points over n-sided areas , in The Mathematics of Surfaces VIII, Cripps R J, Editor. 1998. Information Geometers: p. 313 - 324.

Cheong B H, Lin J and Ball A A, Modelling of hardening due to grain growth for a superplastic alloy, in Proceedings of the International Conference on Advances in Materials and Processing Technologies, AMPT'99 and 16th Annual Conference of the Irish Manufacturing Committee, IMC16, Hashmi M S J and Looner L, Editors. 1999: p. 1419 - 1428.

Cripps R J and Cook P R, Point-based CADCAM, in Advances in Manufacturing Technology XIII, Bramley A N, Mileham A R, Newnes L B and Owen G W, Editors. 1999: p. 149 - 153.

Evans S D, Loftus M and Palmer R, CE marking - achieving compliance with the medical devices directive, in Advances in Manufacturing Technology XIII, Bramley A N, Mileham A R, Newnes L B and Owen G W, Editors. 1999: p. 357 - 361.

Korves B and Loftus M, Designing an immersive reality interface for layout planning, in Proceedings of Conference on Computer Aided Production Engineering, 1999. University of Durham.

Peng Q J and Loftus M, Analysis of 3D construction approaches to support the virtual manufacturing process, in Proceedings of International Conference on Advanced Manufacturing Technology, Xiían Jiaotong University, China, Zhuangde J, Editor. 1999: p. 653 - 657.

Tookey R M and Sargeant W, Application of point-based smoothing to the design of flying surfaces, in The Mathematics of Surfaces IX, Cipolla R and Martin R, Editors. 2000. Springer: p. 470 - 485.

Loftus M, Causes of high-speed machining irregularities, in Proceedings of MoldMaking 2002 Conference, Communication Technologies Inc, Chicago, USA: p. 126 - 142.

Liu N and Loftus M, 'Surface flaws in high-speed machining applications', Advances in Manufacturing Technology XV11, edited by Qin Y and Juster, N, 2003, Professional Engineering Publishing, p. 33 - 39.

Wang D and Loftus M, 'Cutting force regulation in high-speed CNC machining of corner zones', Advances in Manufacturing Technology XV11, edited by Qin Y and Juster N, 2003, Professional Engineering Publishing, p. 41 - 46.

Fan X, 'Force control strategies for P20 die tool steel', Proceedings of the Ninth Annual Postgraduate Research Symposium, edited by Ward M C, 2003, University of Birmingham, p. 45 - 49.

Zhu S and Cripps R J, 'G2-approximation of generalised Cornu spirals (GCS) by quintic Bézier curves', Proceedings of the Ninth Annual Postgraduate Research Symposium, edited by Ward M C , 2003, University of Birmingham, p. 6 - 10.

Ball A and Cader R A, 'Quality surface wrapping for manufacture', in Proceedings of the 5th International Conference on Integrated Design and Manufacturing in Mechanical Engineering, IDMME 2004, edited by Bramley A N, Culley S J, Dekoninck E A, McMahon C A, Medland A J, Mileham A R, Newnes L B and Owen G W.

Cripps R J and Ball A A, 'Orthogonal C2 cubic spline curves', Geometric Modeling and Computing, edited by Lucian M L and Neamtu M, Proceedings of the tenth International SIAM Conference on Geometric Design '03, Seattle, USA, 2004, Nashboro Press, p.

Cripps R J and Li X, 'Data segmentation using implicit surfaces', in Proceedings of 34th International MATADOR Conference, edited by Hinduja S, UMIST, 2004: p. 75 - 80.

Kayal P, Fisher M and Ball A A, 'Error analysis for cutter path generation using the inverse offset method', Advances in Manufacturing Technology, Proceedings of the Second International Conference on Manufacturing Research ICMR2004, Sheffield, 2004, edited by Saad S and Perera T, p. 61 - 66.

Kayal P and Ball A A, 'A point-based approach for free-form surface finishing and its quality assessment compared to polyhedral machining', International Symposium on Advanced Materials and Processing, ISAMAP2K4, I.I.T, Kharagopur, India, p. 358 - 366.

Liu N and Loftus M, 'Prediction of surface quality from ball-nose milling in high-speed machining applications', in Proceedings of the 5th International Conference on Integrated Design and Manufacturing in Mechanical Engineering, IDMME 2004, edited by Bramley A N, Culley S J, Dekoninck E A, McMahon C A, Medland A J, Mileham A R, Newnes L B and Owen G W.

Loftus M and Wang D, 'Surface blemishes in 3D offset machining', in Proceedings of DETC'04 ASME 2004 Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Salt Lake City, Utah, USA, 2004: Paper DETC2004-57763.

All Publications: PhD Theses

Tookey R M, Automatic Filleting of Planar Curves, 1991.

University of Birmingham, supervised by A A Ball.

Barley S A, On the Characteristation and Interrogation of Shape, 1992.

University of Birmingham, supervised by R J Cripps.

Hands J, Reparameterised Rational Surfaces for Engineering Design, 1992.

University of Birmingham, supervised by A A Ball.

O’Neill E F, Geometry based Constructions for Curves and Surfaces, 1993.

University of Birmingham, supervised by A A Ball.

Plater D, Methods and Strategies for the NC Machining of General Parametric Surfaces, 1991.

University of Birmingham, supervised by A A Ball.

Li, Y M, Constrained Planar Rational Bézier Curves, 1993.

University of Birmingham, supervised by R J Cripps.

Fung C W, Surface Construction Techniquesfor CADCAM,1994.

University of Birmingham, supervised by A A Ball.

Czerkawski A M, Fitting procedures for curves and surfaces, 1996.

University of Birmingham, supervised by A A Ball.

Ball J V, Generation of smooth curves and surfaces, 1997.

University of Birmingham, supervised by R J Cripps.

Liu C, Geometric control of rational cubic B-splines, 1998.

University of Birmingham, supervised by A A Ball.

Peng Q J, Image-based 3D recovery procedures to support reverse engineering applications, 1998. University of Birmingham, supervised by M Loftus.

Zheng J, Construction of n-sided surfaces, 1998.

University of Birmingham, supervised by A A Ball.

Cook P R, Point-based mathematics and graphics for CADCAM, 2000.

University of Birmingham, supervised by R J Cripps.

Fisher M, Point-based mathematics for computer-aided manufacture, 2001.

University of Birmingham, supervised by A A Ball.

Howe R E, Parametric and discrete surfaces quality visulation and improvement, 2002.

University of Birmingham, supervised by R J Cripps

Li, X, Geometric Property Estimation and Segmentation in Reverse Engineering, 2004.

University of Birmingham, supervised by R J Cripps

Wang, Enhancement of High-Speed Machining Strategies in Corner and Offset Cutting, 2005.

University of Birmingham, supervised by M Loftus

Fan Z, A Simple Cutting Force Model for High-Speed Ball-end Milling Applications, 2005.

University of Birmingham, supervised by A A Ball

Zhu S, G2 Approximation of Generalised Cornu Spirals by Planar Bézier Curves, 2006.

University of Birmingham, supervised by R J Cripps

Fan Z, Geometric Modelling of 5-axis Sculptured Surface Machining, 2006.

University of Birmingham, supervised by A A BAll

Chong , Visual Assessment of Fee-Form Surface Quality, 2006.

University of Birmingham, supervised by A A BAll

Ma X, Geometry Based Data Reduction for Planar Curves and 3D Surfaces, 2007.

University of Birmingham, supervised by R J Cripps

Lockyer P, S, Controlling the Interpolation of NURBS Curves and Surfaces, 2007.

University of Birmingham, supervised by R J Cripps

All Publications: GMG Internal Reports

Marsh D and Barley S A, A Survey of Surface/Surface Intersection Techniques in Computer Aided Design ,1990,GMG:90/01

Czerkawski A M, A Survey of Methods for Curve and Surface Approximation,1990,GMG:90/02

Van-Brunt B, Surface Shape Investigation,1990,GMG:90/03

Ball J V, Patch Filling Algorithm

Barley S A and Cripps R J, An Executive Centred System Design for CAD Applications,1991,GMG:91/02

Van-Brunt B and Marsh D, The Recursive Generation of Curves and Surfaces,1991,GMG:91/03

Tookey R MOutline of a Procedure for Smoothing a Clay Model,1991,GMG:91/04

Ball J V, Longitudinal Continuity between Supersmoothed Patches,1991,GMG:91/05

Ball A A and Fung C W, Development of a Surface Modeller for Peps,1991,GMG:91/06

Cripps R J and Ball A A, The Bézier-Bernstein Matrix and its Inverse,1992,GMG:92/01

Ball J V, Double Patch Filling Algorithm,1992,GMG:92/02

Harrison K, Interrogator Examples Database: Practical Surfaces,1992,GMG:92/03

Fung C W, Modelling of the Vax Handle,1992,GMG:92/04

Tookey R M, Modelling of the Wilkinson Razor Handle,1992,GMG:92/05

Fung C W and Tookey R M, Proposals for the Future Enhancement of the Peps Surface Modeller,1992,GMG:92/06

Martin W A, GMG Interrogator Interface V 2.0 - Specification and Design,1992,GMG:92/07

Li Y and Cripps R J, Generation of Non-Inflecting Planar Bézier Quintic Curves,1992,GMG:92/08

O’Neill E F, Numerical Estimation of the Curvature and Principal Normal on a Plane Parametric Curve,1992,GMG:92/09

O’Neill E F, Numerical Estimation of the Principal Curvatures and Surface Normal, 1992,GMG:92/10

Czerkawski A M, Interrogator Examples Database: Single Patch Surfaces, 1992,GMG:92/11

Li Y and Cripps R J, Generation of Planar Bézier Quintic Curves Having Simple Curvature Profiles,GMG:92/12

Czerkawski A M, Geometric Parametrisation,1992,GMG:92/13

Martin W A, GMG Interrogator Interface V 2.0 - User Guide,1992,GMG:92/14

Harrison K, Modelling of the Telephone Handset,1992,GMG:92/15

Cripps R J and Barley S A, Application of Geometric Intersection Algorithms,1992,GMG:92/16

Barley S A, Geometric Surface Intersection Algorithms,1992,GMG:92/17

Smith D G and Ball A A, The Manufacturing Process at Motor Panels (Coventry) Ltd,1992,GMG:92/18

Ball J V, Patch Assembly,1992,GMG:92/19

Barley S A, Modelling of a Fuel Tank Bracket,1993,GMG:93/01

Barley S A, Improved Boundary Curve Definitiion Procedures for the PEPS Surface Modeller,1993,GMG:93/02

93/03 Withdrawn

Fung C W and Tookey R M, Type 1 Patch Construction,1993,GMG:93/04

Liu Fung C W, Investigation of Patch Splitting,1993,GMG:93/06

Tookey R M, The Manufacturing Process at IMI Precision Diecastings Ltd, 1993,GMG:93/07

Tookey R M, Optimisation Procedure to Smooth an Assembly of Type 1 Patches,1994,GMG:94/01

Tookey R M, Subdivision Procedure to Smooth an Assembly of Rational Bicubic Patches,1994,GMG:94/02

Tookey R M, A New Surface Modelling Procedure based on the Approximate G1 Assembly of Rational Bicubic Patches,1994,GMG:94/03

Tookey R M, PEPS Examples Database: Practical Surfaces,1994,GMG:94/04

Fung C W, N-sided Hole Filling with Rational Bicubic Patches,1994,GMG:94/05
94/06

Li Y M and Cripps R J, Smooth Composite Planar Bézier Quintic Curves, 1994,GMG:96/07

Howe R E, Patch Definitions for Investigating Geometric Sampling Schemes, 1995,GMG:95/01

Tookey R M, Estimation of Curvatures from Planar Point Data,1995,GMG:95/02

Ball A A and Ball J V, GCS Construction Algorithm,1995,GMG:95/03

Chenot E, SET/IGES Interface,1996,GMG:96/01

Ball A A and Liu C, Tangent Control of Rational Cubic B-splines,1997,GMG:97/01

Howe R E, Discrete Geometric Sampling Schemes,1997,GMG:97/02

Tookey R M, Interpolatory Subdivision and Bounding Box Construction for Grids of Points,1997,GMG:97/03

Tookey R M, Testbed Examples Database: Practical Surfaces,1997,GMG:97/01

Cook P R, TESTBED user manual,1998,GMG:98/01 Cook P R, Point-based curve and surface visualisation,1998,GMG:98/01

Cook P R, Point-based surface assessment,1999,GMG:02/01

Storry D J T and Ball A A, A starwise blend surface approximation to an n-sided subdivision patch,1999,GMG:99/02

Cripps R J, Representation independent subdivision algorithms based on geometric sampling,1999,GMG:99/03