In-process workpiece based temperature measurement in cylindrical grinding

Baumgart, Christoph; Heizer, Viktor; Wegener, Konrad

doi:10.1016/j.procir.2018.08.206

Cited by 12 publications

(7 citation statements)

References 9 publications

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“…Temperatures found in literature can vary from a few hundred degrees when measuring via work piece contact (Hadad et al, 2012), up to and above 1000 °C when measuring the surfaces of abrasives or sparks via wavelength analysis (Ueda et al, 1993). Since with our methods, we directly simulate the work piece heat and energy, temperatures between 100 °C and 600 °C would be expected (Malkin and Guo, 2007;Baumgart et al, 2018), which is very well in line with our results.…”

Section: Frontiers In Manufacturing Technologysupporting

confidence: 89%

Towards a multi-abrasive grinding model for the material point method

Leroch

Grützmacher²,

Heckes

et al. 2023

Front. Manuf. Technol.

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An efficient optimization of surface finishing processes can save high amounts of energy and resources. Because of the large occurring deformations, grinding processes are notoriously difficult to model using standard (mesh-based) micro-scale modeling techniques. In this work, we use the meshless material point method to study the influence of abrasive shape, orientation, rake angle, and infeed depth on the grinding result. We discuss the chip morphology, the surface topography, cutting versus plowing mode, the material removal rate, and the chip temperature. A generalization of our model from a straightforward single-abrasive approach to a multiple-abrasive simulation with pseudo-periodical boundary conditions greatly increases the degree of realism and lays the foundation for comparison with real finishing processes. We finally compare our results for multiple abrasives to those obtained for a scaled-down molecular dynamics system and discuss similarities and differences.

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Section: Frontiers In Manufacturing Technologysupporting

confidence: 89%

Towards a multi-abrasive grinding model for the material point method

Leroch

Grützmacher²,

Heckes

et al. 2023

Front. Manuf. Technol.

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“…Considering these issues, a recent study by Urgoiti et al [37] developed a new two-color pyrometer-based optical fiber system for measuring the temperature of the ground part. In [43] a new possibility was proposed for the in-process measurement of workpiece temperature in cylindrical grinding. This last work, together with [44], in which the authors propose wireless data transmission, could form the basis of future temperature acquisition devices.…”

Section: Process Monitoringmentioning

confidence: 99%

Expectations and limitations of Cyber-Physical Systems (CPS) for Advanced Manufacturing: A View from the Grinding Industry

et al. 2020

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Grinding is a critical technology in the manufacturing of high added-value precision parts, accounting for approximately 20–25% of all machining costs in the industrialized world. It is a commonly used process in the finishing of parts in numerous key industrial sectors such as transport (including the aeronautical, automotive and railway industries), and energy or biomedical industries. As in the case of many other manufacturing technologies, grinding relies heavily on the experience and knowledge of the operatives. For this reason, considerable efforts have been devoted to generating a systematic and sustainable approach that reduces and eventually eliminates costly trial-and-error strategies. The main contribution of this work is that, for the first time, a complete digital twin (DT) for the grinding industry is presented. The required flow of information between numerical simulations, advanced mechanical testing and industrial practice has been defined, thus producing a virtual mirror of the real process. The structure of the DT comprises four layers, which integrate: (1) scientific knowledge of the process (advanced process modeling and numerical simulation); (2) characterization of materials through specialized mechanical testing; (3) advanced sensing techniques, to provide feedback for process models; and (4) knowledge integration in a configurable open-source industrial tool. To this end, intensive collaboration between all the involved agents (from university to industry) is essential. One of the most remarkable results is the development of new and more realistic models for predicting wheel wear, which currently can only be known in industry through costly trial-and-error strategies. Also, current work is focused on the development of an intelligent grinding wheel, which will provide on-line information about process variables such as temperature and forces. This is a critical issue in the advance towards a zero-defect grinding process.

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“…Wang et al evaluated that accurate measurement of grinding zone temperature enables thermal damage reduction and control in the grinding process [18]. Baumgart et al presented factors influencing the formation of grinder burns which are investigated by continuous temperature measurement [19,20]. Various technologies have been developed to measure temperature, chief among them thermocouples and infrared measurement techniques.…”

Section: Introductionmentioning

confidence: 99%

Temperature measurement analysis in the cutting zone during surface grinding

Jamuła¹

2021

J. meas. eng.

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The grinding process is commonly used as the final stage of processing. It is used to produce elements that require more tolerance and smooth surface. Considering other processing, such as turning or milling, grinding requires very high energy input per unit volume of material removal. A significant proportion of this energy in the process turns into heat in the grinding zone, which leads to increased temperature. This paper describes and compares two methods of temperature measurement in the cutting zone during surface grinding. The study aimed to determine the differences in the results of temperature measurements using an indirect method, using an analysis of thermal images, and a direct method, using a thermocouple. Two different sets of measurement apparatus were used in the experiment: a thermal imaging camera and a thermocouple with appropriately selected software. The factors affecting the errors obtained with each of the above measurement methods are discussed and the resulting differences in the results are discussed.

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In-process workpiece based temperature measurement in cylindrical grinding

Cited by 12 publications

References 9 publications

Towards a multi-abrasive grinding model for the material point method

Towards a multi-abrasive grinding model for the material point method

Expectations and limitations of Cyber-Physical Systems (CPS) for Advanced Manufacturing: A View from the Grinding Industry

Temperature measurement analysis in the cutting zone during surface grinding

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