Quality-predictive CAM Simulation for NC Milling

Brecher, Christian; Wellmann, Frederik Norbert; Epple, Alexander

doi:10.1016/j.promfg.2017.07.284

Cited by 17 publications

(6 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The evaluation or presentation of the results is also carried out during the process. Previous projects focused, for example, on the tool behavior 3 or the simulation in advance of the tool behavior. 4 Other research projects determined the position deviation of the TCP by direct measurement.…”

Section: F I G U R E 1 Displacement Of the Tcp Because Of Deformationmentioning

confidence: 99%

In‐process image of machine tools – Transient‐thermal and dynamic simulation of moving structures

Kreißl

Regel

Wabner

et al. 2021

Engineering Reports

View full text Add to dashboard Cite

The aim of structural mechanics simulation is to better represent the working accuracy of machine tools. The visualization is done in process, that is, during the machine movement. It is realized by reading out the control values and the subsequent simulation of the structural–mechanical behavior of the machine. This procedure allows deviations in the working accuracy outside the control loop to be taken into account, which cannot be detected by the measuring system. This allows an improved statement on the achievable working accuracy and enables the operator to react to any deviations in the machine accuracy. In contrast, the thermal behavior of machine tools focuses on an observation level which is characterized by long and strongly varying time constants. In contrast to process control, the term “thermal real time” addresses the seconds to hours range. For the implementation, a three‐axis demonstrator machine with discrete elements was modeled.

show abstract

Section: F I G U R E 1 Displacement Of the Tcp Because Of Deformationmentioning

confidence: 99%

In‐process image of machine tools – Transient‐thermal and dynamic simulation of moving structures

Kreißl

Regel

Wabner

et al. 2021

Engineering Reports

View full text Add to dashboard Cite

show abstract

“…Likewise, Brecher, et al [48] stated that, nowadays, CAM is able to offer quality products because it is easy to operate and it is a type of technology that is available for most companies. A similar hypothesis was made by Brecher and Lohse [49], who pointed out that computerized systems allow better control of activities.…”

Section: Literature Review and Hypothesesmentioning

confidence: 99%

The Role of Advanced Manufacturing Technologies in Production Process Performance: A Causal Model

et al. 2019

View full text Add to dashboard Cite

Advanced manufacturing technologies (AMT) require considerable investments that managers often avoid, which makes it difficult to link their production operations with the benefits reported in literature review. The present paper shows a structural equation model that integrates four latent variables to measure the relationship between the levels of advanced manufacturing technologies implementation (Stand-Alone Intermediate and Integrated Systems), as well as the benefits obtained in the productive systems. The variables are related to each other using six hypotheses in order to realise how the AMT implementation level affects the benefits obtained from a quantitative and statistical point of view. The model is evaluated through the partial least square technique with data from 383 responses to a survey. Findings show that Stand-Alone Systems contribute more to obtaining Production Benefits, followed by Integrated Systems and Intermediate Systems. Finally, a sensitivity analysis based on conditional probabilities was performed to evaluate scenarios at different implementation levels in AMT to know how they facilitate the acquisition of the benefits offered.

show abstract

“…Literature review. Considerable attention is paid to methods for modeling cutting processes [1,2], materials and tools [3] and spatial processing schemes [4]. The created models allow software analysis of properties and determination of various processing parameters [5], including cutting forces [6] and dynamic characteristics [7].…”

Section: Introductionmentioning

confidence: 99%

Simulation of the process of milling and grinding cylindrical surfaces by an oriented tool in one setup

Кальченко¹,

Кальченко²,

Tsybulia³

et al. 2022

Nauk. visn. nat. hirn. univ.

View full text Add to dashboard Cite

Purpose. Improvement of schemes for processing the cylindrical surfaces of the shafts of gearboxes and transmissions of large-sized equipment. Development of modular spatial models of the processes of milling and grinding of the cylindrical surfaces of the shafts of gearboxes and transmissions of military and civil vehicles. Development of a model for dressing a grinding wheel with a diamond tool. Methodology. Creation of general and particular modular mathematical models of the processes of removal of allowance and shaping during rough and finish milling and finishing grinding of non-rigid cylindrical surfaces was carried out using a matrix apparatus for transforming coordinate systems. This made it possible to describe the treatment process using standard matrices. The calculations were carried out in the mathematical package Mathcad. To obtain a graphic display of the mathematical model of the instrumental and machined surfaces, the standard functions of the software package and the developed logical blocks were used. Findings. A technique for processing cylindrical surfaces of revolution with an oriented tool is proposed. Roughing, finishing and polishing are carried out in one setup. Roughing and finishing are carried out with an oriented cutter with replaceable multifaceted carbide inserts. The angle of orientation of the cutter is selected from the condition of maximum loading of the end section. Thus, the roughing stock is removed by the end face and by the finishing periphery, while the maximum component of the cutting force is directed along the axis of the part and does not cause deformations in the radial direction. Final finishing is carried out with a wide grinding wheel. The angle of orientation of the grinding wheel is selected from the condition of uniform distribution of the allowance along the periphery. A scheme for dressing the working surface of a grinding wheel with a diamond pencil with a constant feed is proposed. Originality. Modular spatial models of the processes of milling and grinding of the cylindrical surfaces of the shafts of gearboxes and transmissions of military and civil vehicles were developed. A model for dressing a grinding wheel is proposed. The use of the proposed models makes it possible to conduct a more detailed analysis of the processes of stock removal and shaping. Practical value. Dependencies are proposed for choosing the optimal angles of orientation of the cutter for roughing and finishing milling and the grinding wheel for finishing. The accuracy of parts is increased due to the elimination of the resetting error. The cost of manufacturing is reduced due to the maximum full use of cutting carbide inserts, by turning them and operating the worn finishing edge in the rough milling mode, as well as by increasing the resource of the grinding wheel.

show abstract

Quality-predictive CAM Simulation for NC Milling

Cited by 17 publications

References 29 publications

In‐process image of machine tools – Transient‐thermal and dynamic simulation of moving structures

In‐process image of machine tools – Transient‐thermal and dynamic simulation of moving structures

The Role of Advanced Manufacturing Technologies in Production Process Performance: A Causal Model

Simulation of the process of milling and grinding cylindrical surfaces by an oriented tool in one setup

Contact Info

Product

Resources

About