NC machining for revolved and swept surfaces with free-form profiles

Omirou, Sotiris L.

doi:10.1016/s0924-0136(02)00944-5

Cited by 5 publications

(5 citation statements)

References 4 publications

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“…The tool path and programming for CBS will done by offsetting the CBC with equal distance on entire length of surface. Similarly for revolved surface using Bézier curve [7] with scallop height, cutting plane and start point on path for each succession steps are formulate. Giriet al (2005) [10]exp ressed master cutter path generates same as in conventional method, but no relationship between the any point and surface, this will reduces the machining time by employing optimization in CL file size.…”

Section: Figure 1 Sculptured Surface Machining Using Ball End Mill Cumentioning

confidence: 99%

“…A CAD model modificat ion is based on work piece measurement or simulated surface reconstruction. [7] p rojected A Bézier curve is generated by simple formu lation using control points, Bernstein polynomials with recursive algorithm of de Casteljau algorith m in parametric form. Taking offset of that curve will generates the surface with Equal distance space.Locus tracing algorith m is used to generate Bézier surface based on Bézier curve.…”

Section: Introductionmentioning

confidence: 99%

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Cubic Bézier Surface Machining: A State of an Art Review

2014

IJAERD

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Section: Figure 1 Sculptured Surface Machining Using Ball End Mill Cumentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cubic Bézier Surface Machining: A State of an Art Review

2014

IJAERD

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“…The generation of an accurate motion along the offset of the trochoid curves is treated as a locus tracing problem. The concept is generally applicable in motion generation and has already been tested successfully in similar problems of CNC machining [9][10][11][12]. In this paper, its application is illustrated in the context of motion generation along the offset of a trochoid.…”

Section: Structure Of the Algorithmmentioning

confidence: 99%

“…11. The form of this curve is defined by the following values of its constants coefficients: R = 50 mm r = 25 mm h = 13 mm (12) Thus, the parametric equations (11) …”

Section: Offset Generation Tests For An Epitrochoid Curvementioning

confidence: 99%

A CNC Manufacturing Method for Parts with Trochoidal Profile

Omirou

Fyrillas

2014

Journal for Manufacturing Science and Production

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This paper presents a manufacturing method for parts with trochoidal profile on CNC milling machines. The method is based on a new real-time interpolation algorithm capable to drive the cutter along the offset of trochoid curves with precision equal to the resolution of the machine. The structure of the presented algorithm may be adapted accordingly so as to be used either for parts with an epitrochoidal or a hypotrochoidal profile. Both types of curves, known as trochoid curves, have important industrial applications such as gears with trochoidal tooth-profile, cams, trochoidal-shaped housings for rotary internal combustion engines and rotary piston pumps etc. The effectiveness and accuracy of the proposed method is verified by simulation tests of the generated tool path for the machining of two representative mechanical parts, an inner rotor of a hypogerotor pump and an epitrochoidal-shaped housing.

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“…As a key technology for the further development, a variety of methods of shape representation have been proposed; moreover, various forms of tool path generation associated therewith have been expanded so far. These forms can be classified into two general groups by shape representation: the procedure with parametric description (NURBS (4) , Bézier parameterization (5) , spline interpolation (6) , etc.) and the procedure with polyhedral surface (7)(8)(9) .…”

Section: Introductionmentioning

confidence: 99%

Normal-Unit-Vector-Based Tool Path Generation Using a Modified Local Interpolation for Ball-End Milling

Sekine

Obikawa

2010

JAMDSM

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This paper describes a novel tool path generation for three-axis ball-end milling using a local interpolation. After a modified local interpolation using normal unit vectors is introduced, generation of a parametric offset geometry is presented based on the local interpolation. In tool path generation, determination of a path interval and tool feed planning, which can be applied to both the scanning-line and contour-line machining, are proposed using normal unit vectors. Through their examples, it was verified that the proposed procedures possessed simplicity and flexibility.

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NC machining for revolved and swept surfaces with free-form profiles

Cited by 5 publications

References 4 publications

Cubic Bézier Surface Machining: A State of an Art Review

Cubic Bézier Surface Machining: A State of an Art Review

A CNC Manufacturing Method for Parts with Trochoidal Profile

Normal-Unit-Vector-Based Tool Path Generation Using a Modified Local Interpolation for Ball-End Milling

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