Prospects for using T-splines for the development of the STEP-NC-based manufacturing of freeform surfaces

Zhao, Gang; Zavalnyi, Oleksandr; Liu, Yazui; Xiao, Wenlei

doi:10.1007/s00170-018-3182-4

Cited by 20 publications

(2 citation statements)

References 30 publications

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“…A common single type of horn is conical, exponential, and stepped. The conical type horn is easy to make, and the maximum stress at the section mutation is also the smallest, but the amplitude amplification coefficient is also relatively small [20]. The exponential type horn has stable performance, large amplitude, medium amplification coefficient, but the production is more complicated.…”

Section: Design Of Hornmentioning

confidence: 99%

Study on a Large-Scale Three-Dimensional Ultrasonic Plastic Welding Vibration System Based on a Quasi-Periodic Phononic Crystal Structure

Lin

2020

Crystals

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The uniformity of amplitude distribution and amplitude gain are two main factors affecting the performance of ultrasonic welding vibration system. In order to improve the uniformity of amplitude distribution and amplitude gain of welding surface to enhance the performance of the vibration system, a new design method of a large-scale three-dimensional ultrasonic plastic welding vibration system based on a quasi-periodic phononic crystal structure is proposed. In this method, the composite horn combined with a conical section and a cylindrical section can effectively improve the output amplitude gain of the welding surface. In addition, the method forms a quasi-periodic phononic crystal structure by slotting in a large-scale three-dimensional tool head, and utilizes the band gap property of the structure to effectively suppress lateral vibration of the tool head and improve the amplitude distribution uniformity of the tool head’s welding surface. However, when the size of the tool head is relatively large, the quasi-periodic phononic crystal structure cannot suppress the lateral vibration very well. Therefore, the paper processes fan-shaped slopes on the output surface of the tool head which can further improve the uniformity of the amplitude distribution and amplitude gain. Finally, the simulation analysis and experiments show that the design method can optimize the large-scale three-dimensional ultrasonic plastic welding system, improve the uniformity of the vibration distribution and increase the output amplitude gain of the welding surface.

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Section: Design Of Hornmentioning

confidence: 99%

Study on a Large-Scale Three-Dimensional Ultrasonic Plastic Welding Vibration System Based on a Quasi-Periodic Phononic Crystal Structure

Lin

2020

Crystals

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“…Gan et al proposed an improved SFC method to generate a nonretraction tool path for T-spline surfaces with irregular boundary [19]. Zhao et al developed a STEP-compliant CNC system which uses T-spline surfaces to represent the freeform surface model in the system [20,21]. And, Feng et al proposed a T-spline surfaces direct slicing algorithm for FDM 3D printing [22].…”

Section: Introductionmentioning

confidence: 99%

Five-Axis Tool Path Generation of Injection Mold Represented by T-Spline Surface

Shang

Shen

et al. 2020

Advances in Polymer Technology

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Injection molding is widely used in industries to produce polymeric products. At present, compound NURBS surfaces are commonly used to represent freeform surfaces in mold models. This work uses T-spline surface with extraordinary control points instead of NURBS to represent freeform surfaces in mold models. Compared with NURBS, T-splines’ higher-order continuity facilitates the mold quality control especially at the patch boundary. And, its patch layout information can be utilized for tool path planning. We propose an algorithm to determine the patch processing order and generate nonretraction tool path for T-spline surface models. The tool paths are generated patch by patch using isoparametric strategy. Actual machining and injection molding experiments have been conducted. The result shows the feasibility of the proposed method, and the final product is in good quality.

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Rolling bearing faults severity classification using a combined approach based on multi-scales principal component analysis and fuzzy technique

Babouri

Djebala

Ouelaa

et al. 2020

Int J Adv Manuf Technol

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Prospects for using T-splines for the development of the STEP-NC-based manufacturing of freeform surfaces

Cited by 20 publications

References 30 publications

Study on a Large-Scale Three-Dimensional Ultrasonic Plastic Welding Vibration System Based on a Quasi-Periodic Phononic Crystal Structure

Study on a Large-Scale Three-Dimensional Ultrasonic Plastic Welding Vibration System Based on a Quasi-Periodic Phononic Crystal Structure

Five-Axis Tool Path Generation of Injection Mold Represented by T-Spline Surface

Rolling bearing faults severity classification using a combined approach based on multi-scales principal component analysis and fuzzy technique

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