Morphing Technology for Generating Intermediate Roughing Models in Multi-axis Machining

Han, Feiyan

doi:10.3901/jme.2017.03.155

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…As we know, a casing part with a variety of machining features has a large number of machined surfaces at the same cutting depth in patch-by-patch machining, so it requires a reasonable arrangement of the cutting sequence to improve machining efficiency. In this article, the morphing technology 24 is used to construct the intermediate machined surface for the casing part; the casing part and its three fan-shaped machining regions are shown in Figure 2. The intermediate machined surface is gradually approach to the theoretical surface, and the corresponding value of the intermediate machined surface in the computational domain along the direction of w is taken as the division foundation of cutting depth, where w belongs to the range [0, 1].…”

Section: Solution Of Optimization Model Basedon the Tsmentioning

confidence: 99%

Section: Cutting Sequence Calculation For a Casing Partmentioning

confidence: 99%

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A cutting sequence optimization method based on tabu search algorithm for complex parts machining

Zhang

Han

2018

Proceedings of the Institution of Mechanical Engineers, Part B:

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Defining the cutting sequence of each cutter scientifically in the process of removing the allowance has an important influence on the machining efficiency for complex parts, which have multiple machining features. In order to satisfy the needs of high efficiency for rough machining, after determining the tool path of the machining region, a cutting sequence optimization method based on the tabu search algorithm is presented to define the cutting order in rough machining of complex parts. First, a cutting sequence optimization mathematical model is established, which relates to the shortest total length of the tool path. Second, through the problem analysis, the cutting sequence optimization model is converted into an open and constrained traveling salesman problem. And then, the optimization model is solved by dealing with an open and constrained traveling salesman problem using the tabu search algorithm. Finally, the optimal cutting sequence of machining a casing part is calculated, and a simulation and experiment are carried out. The result shows that the optimization approach presented in this article can optimize the cutting sequence and cutter position of advance and retract. Compared with the non-optimized cutting sequence method, the total length of tool path is reduced by 16.7%, the cutter lifting times are reduced to 26, and the efficiency is increased by 21.62%.

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Section: Solution Of Optimization Model Basedon the Tsmentioning

confidence: 99%

Section: Cutting Sequence Calculation For a Casing Partmentioning

confidence: 99%

A cutting sequence optimization method based on tabu search algorithm for complex parts machining

Zhang

Han

2018

Proceedings of the Institution of Mechanical Engineers, Part B:

Self Cite

View full text Add to dashboard Cite

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A high-efficiency generation method of integral impeller channel tool path based on parametric domain template trajectory mapping

Han

Zhang

Guo

et al. 2018

Int J Adv Manuf Technol

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A High-Efficiency Impeller Channel Quasi-Triangular Tool Path Planning Method Based on Template Trajectory Mapping

et al. 2018

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The manufacturing technology of an integral impeller is an important indicator for measuring the manufacturing capability of a country. Its manufacturing process involves complex free-form surface machining, a time consuming and error-prone process, and the tool path planning is considered as a critical issue of free-form surface machining but still lacks a systematic solution. In this paper, aiming at the tool path planning of the impeller channel, a quasi-triangular tool path planning method based on parametric domain template trajectory mapping is proposed. The main idea is to map the template trajectory to physical domain by using the mapping model of parametric domain to the physical domain to obtain the actual machining path. Firstly, the trajectory mapping model of parametric domain to physical domain is established using the morphing technique, and the template trajectory mapping method in the parametric domain is given. Secondly, the clean-up boundary of the impeller channel is determined in the parametric domain, and the quasi-triangular template trajectory of the impeller channel is defined. Finally, taking a certain type of impeller as an example, the quasi-triangular tool path of the impeller channel is calculated, and the tool path calculation time of this method is compared with that of the traditional isometric offset method. The result shows that the computational efficiency is improved by 45% with this method, which provides a new method for the rapid acquisition of NC machining tool path for impeller channels. In addition, the simulation and actual machining are carried out, the results show that the shape of actual cutting traces on the surface of the impeller channel is quasi-triangular, showing that this method is effective and feasible.

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Morphing Technology for Generating Intermediate Roughing Models in Multi-axis Machining

Cited by 3 publications

References 1 publication

A cutting sequence optimization method based on tabu search algorithm for complex parts machining

A cutting sequence optimization method based on tabu search algorithm for complex parts machining

A high-efficiency generation method of integral impeller channel tool path based on parametric domain template trajectory mapping

A High-Efficiency Impeller Channel Quasi-Triangular Tool Path Planning Method Based on Template Trajectory Mapping

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