Machining Theory of Forming Complex Inner Helicoid and Numerical Algorithm to Design Contour of the Disc-Mill Cuter

Ke Wang; Shu Qiang Wang; Xing Wei Sun; Guo Dong Liu

doi:10.4028/www.scientific.net/AMM.141.339

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Kinematics and Kinetostatic Analysis of a New Type of Mechanical Excavator with Controllable Mechanism
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Machining Theory of Forming Complex Inner Helicoid and Numerical Algorithm to Design Contour of the Disc-Mill Cuter
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 141Machining Theory of Forming Complex Inner Helicoid...

Machining Theory of Forming Complex Inner Helicoid and Numerical Algorithm to Design Contour of the Disc-Mill Cuter

Abstract:

The inner helicoid of the PDM’s stator is a kind of typical inner surface that is complex and tenuous. This paper studies the theory to form the inner helicoid in the screw stator which has a large lead and whose cross-section is composed by convex and concave curves using disc milling method. According to the varieties of the curve types of workpiece’s cross-section, a numerical method was proposed to calculate the theoretical contour shape of the disc milling cutter using coordinates of the fewer points on the workpiece’s cross-section. The manufacturing test confirmed the correctness of the design algorithm of the cutter’s profile and feasibility of this milling forming method.

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Periodical:

Applied Mechanics and Materials (Volume 141)

Pages:

339-343

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.141.339

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Online since:

November 2011

Authors:

Ke Wang, Shu Qiang Wang, Xing Wei Sun, Guo Dong Liu

Keywords:

Design of Contour, Forming Machining, Inner Helicoid, Milling

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