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A Comparative Study of Helical Polygonal Turning and Helical Peripheral Milling in a Turn Mill
Volume 2: Manufacturing Equipment and Automation; Manufacturing Processes; Manufacturing Systems; Nano/Micro/Meso Manufacturing; Quality & ReliabilityAbstract Traditionally, the milling process is adopted to machine polygonal geometries from a cylindrical bar on a Sliding Head Turn-Mill Center. In the case of titanium implants, machining helical geometries with polygonal cross sections is time-consuming. However, to meet increasing demand, faster cycle times become a crucial parameter
Madhur Pandya +4 more
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Study on micro helical milling of small holes with flat end mills
The International Journal of Advanced Manufacturing Technology, 2018Helical milling as an eco-friendly hole-making process has various advantages comparing to conventional drilling process and has been widely studied. But micro helical milling for small holes was not investigated. This paper focuses on preliminary studies on micro helical milling of small holes with flat micro end mills.
Xiang Cheng +4 more
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Generalized Modeling of Milling Mechanics and Dynamics: Part I — Helical End Mills
Manufacturing Science and Engineering, 1999Abstract Variety of helical end mill geometry is used in industry. Helical cylindrical, helical ball, taper helical ball, bull nosed and special purpose end mills are widely used in aerospace, automotive and die machining industry. While the geometry of each cutter may be different, the mechanics and dynamics of the milling process at ...
Serafettin Engin, Yusuf Altintas
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Hole Quality Analysis in Helical Milling of CFRP
Applied Mechanics and Materials, 2014Carbon fiber reinforced plastics (CFRP) are highly promising materials for the applications in the aerospace industries, but they are typical difficult-to-cut material. In order to improve the quality, helical milling technology was developed. In this study, helical milling experiments were conducted in the machining center about CFRP materials.
Hai Yan Wang, Xu Da Qin
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Prediction of heat transfer process in helical milling
The International Journal of Advanced Manufacturing Technology, 2014This paper represented a three-dimensional heat transfer model which describes the temperature distribution with the time variation in solid with conduction-convection boundary during the helical milling process. On the basis of the kinematic mechanisms of helical milling, two types of heat sources were presented; one was the first heat source (FTHS ...
Jie Liu, Chengzu Ren, Xuda Qin, Hao Li
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Profile Design of the Helical Groove Milling Tool
Advanced Materials Research, 2013In the process of milling special helicoid , there is a cusp point between its profile curve and linear esicoaginal junction . Ordinary milling cutter can't processing .If milling tool profiles are calculated and designed by smooth connection, the findings of milling tool profiles will appear profiles jagged or profiles detached phenomena.
Ji Ping Chen, Rui Jun Yang
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Prediction of cutting forces in helical milling process
The International Journal of Advanced Manufacturing Technology, 2011The prediction of cutting forces is important for the planning and optimization of machining process in order to reduce machining damage. Helical milling is a kind of hole-machining technique with a milling tool feeding on a helical path into the workpiece, and thus, both the periphery cutting edges and the bottom cutting edges all participated in the ...
Haiyan Wang +3 more
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Analysis of Cutting Forces in Helical Milling Process
Advanced Materials Research, 2011Helical milling is used to generate holes, in which a tool attached to the rotating spindle traverses a helical trajectory, and the diameter of holes will be larger than that of the tool. Based on the principle of helical milling, this paper establishes analytical model of cutting forces.
H.Y. Wang, Xu Da Qin, Qi Wang
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Micro milling characteristics of LS-WEDM fabricated helical and corrugated micro end mill
International Journal of Mechanical Sciences, 2020Abstract Micro milling offers a high potential for fabricating three-dimensional micro structure, such as micro grooves, micro channels and micro dimples. However, the fabrication of solid micro end mills with hard materials and complex structures poses many challenges.
Y. Sun +4 more
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Extended theory for orbital drilling (helical drill‐milling)
Materialwissenschaft und Werkstofftechnik, 2011AbstractBeim Orbitalbohren bewegt sich das Werkzeug (spezieller Schaftfräser) relativ zum Werkstück auf einer Helixbahn. Durch die dreidimensionale Werkzeugbahn und die überlagerte rotierende Schnittbewegung des Werkzeugs entsteht am Werkstück eine komplexe Bearbeitungstopographie, die die zerspantechnische Eingriffsbedingung des Werkzeugs vorgibt. Die
S. Fangmann, I. Meyer, E. Brinksmeier
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