Extraction of modal parameters of CNC lathe bed using finite element and experimental method

Revanasiddesh, B.V.; Taj, Aslam Pasha; Kumar, nbspAnirudh; Suresh, Batchu

doi:10.1016/j.matpr.2020.04.291

Cited by 8 publications

(4 citation statements)

References 5 publications

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“…Further observing the stress value color bars, it can be found that the mesh size is 20 mm, the mesh number is 121,859, the node number is 207,140, a mesh type is Solid187, which has ten nodes, and each node has three translational d of freedom. Solid187 has strong boundary adaptation and displacement flexibility suitable for meshing irregular geometry models [27]. Figure 3a shows the finite e meshing model of the hinge beam.…”

Section: Finite Element Resultsmentioning

confidence: 99%

An Efficient Structural Optimization Method for the Hinge Beam of a Cubic Press

et al. 2023

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This study proposes a novel approach to optimize the structure of the hinge beam in cubic presses, aiming to enhance the safety and reduce costs. The finite element method is used to analyze the stress distribution of the hinge beam under operating conditions, revealing a significant stress concentration at the oil inlet edge. To optimize the structure, the Taguchi method, the NSGA-II multi-objective optimization algorithm, and the entropy-TOPSIS method are combined to consider both the maximum stress and total weight. The results demonstrate a reduction of 199.121 kg and 11.97 MPa in the total weight and maximum stress of the hinge beam, respectively, representing a decrease of 4.12% and 1.72%. Furthermore, the simulation results of the optimal structure demonstrate a high degree of accuracy, with only 0.27% difference between the algorithm-optimized and simulation values. The proposed optimization method not only improves the efficiency of the optimization, but also avoids the mutual exclusion between the maximum stress and total weight. It significantly improves the reliability of the hinge beam and reduces its manufacturing costs, thereby shortening the development cycle of the new hinge beam.

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Section: Finite Element Resultsmentioning

confidence: 99%

An Efficient Structural Optimization Method for the Hinge Beam of a Cubic Press

et al. 2023

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“…The vibration-resistant frame adopts a lattice beam design. Finally, finite element analysis [9], [10]is used to validate the calculated design results. The base of the wafer dicing machine provides a stable foundation for all the motion axes.…”

Section: Gantry Structure Designmentioning

confidence: 99%

Design method for wafer dicing machine base based on calculations

Tai,

Fang

2023

Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023)

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In recent years, the role of semiconductor industry has become crucial for development in various countries. The semiconductor industry mainly consists of three parts: silicon material production, integrated circuit wafer manufacturing, and integrated circuit packaging. This paper focuses on the analysis of the cutting structure of the backend equipment wafer dicing machine in the integrated circuit packaging process. Currently, the mainstream wafer dicing machines utilize two types of cutting methods: laser cutting and mechanical cutting. While laser cutting is necessary for certain materials due to the generation of debris, mechanical cutting using diamond saw blades still offers significant cost savings. In order to achieve optimal design for mechanical wafer dicing machines, this paper presents a design process specifically tailored for such machines that used of mechanical cutting method, taking the example of a vibration-isolated base for a 6-inch wafer dicing machine.

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“…FEM can be used to optimize the design of machine tool structures by evaluating different designs and selecting the one that performs best in terms of stiffness, vibration, and stress. Also, the dynamic behaviour of the CNC machine tool during machining operations is restricted by key performance parameters which is necessary to be considered during the designing phase of CNC machine tools structures [17]. FEM can help to reduce the cost of machine tool structure design by eliminating the need for expensive physical prototypes.…”

Section: Introductionmentioning

confidence: 99%

Modification of CNC Machine Tool Operations and Structures Using Finite Element Methods: A Review

2023

jjmie

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To increase accuracy as well as productivity in CNC machine tools, Finite Element Methods (FEM) are applied to the machining operations and machine tool structures. As a result, the errors of machining operations can be analyzed and minimized in order to enhance accuracy of machined parts. Also, by analyzing the stress and deformations of the machine tool elements under actual loads, performances as well as working life of the machine tool structures can be enhanced. The study reviews the analysis and modification of CNC machine tool operations and structures using finite element methods from the recent published papers. Applications of the FEM methods in the simulation of cutting temperatures, cutting forces and energy consumption, chip formation, deflection and deformation errors of thin-walled components, and tool wear rate during machining processes are reviewed to demonstrate the capabilities of the FEM simulation in CNC machining modification. Furthermore, applications of theFEM tosimulate various machine tool components such as the bed, ball screw, spindle, and guideways are studied in order to enhance the performances of various machine tool elements such as mechanical properties in real-world working situations.In order to fill the gaps between the existing studies and published papers, innovative concepts and approaches of future research works are also suggested. Thus, the research field can be developed by reviewing and analyzing previous achievements in published research works in order to offer innovative concepts and approaches in applications of FEM techniques in modifying machining procedures and CNC machine tool structures.

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Extraction of modal parameters of CNC lathe bed using finite element and experimental method

Cited by 8 publications

References 5 publications

An Efficient Structural Optimization Method for the Hinge Beam of a Cubic Press

An Efficient Structural Optimization Method for the Hinge Beam of a Cubic Press

Design method for wafer dicing machine base based on calculations

Modification of CNC Machine Tool Operations and Structures Using Finite Element Methods: A Review

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