Towards Virtual Engineering in Machine Tool Design

Bianchi, Giacomo; Paolucci, F.; Braembussche, Pieter Van den; Brussel, Hendrik Van; Jovane, F.

doi:10.1016/s0007-8506(07)63085-6

Cited by 67 publications

(29 citation statements)

References 7 publications

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“…This approach of designing prototype machines in software has been termed virtual prototyping. 24, 25 Bustillo et al 10 proposed a strategy to redesign and manufacture the milling head made of aluminum alloys, in which the metal tubular conduits were implemented by overcoming metal contraction during manufacturing process. As demonstrated in the experimental validation, the new prototype provides sufficient mechanical performance and reliability.…”

Section: Introductionmentioning

confidence: 99%

Design analysis of machine tool structure with artificial granite material

Chen

Hung

et al. 2016

Advances in Mechanical Engineering

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Artificial granite material has been used for construction of the high-precision machine due to superior damping ability. However, its lower material stiffness also lessens the application in fabrication of the machine tool. The purpose of this study was therefore aimed to verify the structure performance of the machine tool reformed with artificial granite material, instead of the casting iron. To gain insight into the optimized configuration of the vertical columns and spindle head stock, the static and dynamic characteristics of the machine models with cast iron and granite composites were predicted for comparison. With this, evaluations of the machine with different design were made to examine the experimental measurements on the prototype machine. According to the simulation results and experimental measurements, the static stiffness of the machine tool reformed with granite material is comparable to the original casting machine, differed by 8% approximately. However, granite machine shows superior dynamic stiffness, about 0.5-1.3 times of the conventional casting machine. This study verifies the feasibility and effectiveness in fabrication of the machine tool with the artificial composite material and provides the improvements for further fabrications.

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Section: Introductionmentioning

confidence: 99%

Design analysis of machine tool structure with artificial granite material

Chen

Hung

et al. 2016

Advances in Mechanical Engineering

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“…Currently, the finite element approach has been recognized as an effective tool in modeling the machine tool, which can accurately predict the dynamic behavior of the prototype designs without physically building any parts. This approach of designing prototype machines in software has been termed virtual prototyping [13,14]. To be a realistic model for assessing the frequency responses of the milling machine, a finite element model incorporating the machine frame with a spindle unit was a prerequisite.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Machining Stability of a Milling Machine with Hybrid Guideway Systems

et al. 2016

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This study was aimed to investigate the machining stability of a horizontal milling machine with hybrid guideway systems by finite element method. To this purpose, we first created finite element model of the milling machine with the introduction of the contact stiffness defined at the sliding and rolling interfaces, respectively. Also, the motorized built-in spindle model was created and implemented in the whole machine model. Results of finite element simulations reveal that linear guides with different preloads greatly affect the dynamic responses and machining stability of the horizontal milling machine. The critical cutting depth predicted at the vibration mode associated with the machine tool structure is about 10 mm and 25 mm in the X and Y direction, respectively, while the cutting depth predicted at the vibration mode associated with the spindle structure is about 6.0 mm. Also, the machining stability can be increased when the preload of linear roller guides of the feeding mechanism is changed from lower to higher amount.

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“…Thus, the design phase takes into account the manufacturing constraints as the customer requirements; more these constraints must not restrict the creativity of design. Also to facilitate the choice of the most suitable system for a specific process, Virtual Manufacturing is supplemented with developments of numerical computations (Altintas et al 2005, Bianchi et al 1996 in order to compare at low cost several solutions developed with several hypothesis without manufacturing of prototypes. Our approach of product-process integration is illustrated in Figure 1: the quality of mechanical parts depends on the expression of specifications (shapes, functions, dimensions, surface quality and materials), the capacity of shaping processes and resource capability (defects in machine-tools, tools, fixtures).…”

Section: Introduction: Virtual Manufacturingmentioning

confidence: 99%