Sequential multistage deep rolling under varied contact conditions

Hettig, Matthias; Meyer, Daniel

doi:10.1016/j.procir.2020.02.027

Cited by 8 publications

(6 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is possible through a modelbased subdivision of the material into several volume elements. Thus, it allowed analyses of not only the local load of the tool on the workpiece, but also the load states at the next-neighbor elements affected by residual stress states during different process time steps [29].…”

Section: Deep Rollingmentioning

confidence: 99%

Combination of Thermal and Mechanical Strategies to Compensate for Distortion Effects during Profile Grinding

et al. 2022

View full text Add to dashboard Cite

This paper describes the investigations and the results of an analysis of distortion compensation processes for profile grinding. Steel workpieces often change their residual stress state due to machining in a seemingly uncontrolled matter. Furthermore, in research as well as in the industry, the accurate representation of shape deviations during the cutting of slim profiled workpieces and their deformation handling is a major challenge. In this paper, a valid predictive model, developed for the compensation of distortions resulting from the effect of a laser-based treatment and a deep rolling, was calibrated by experimental data. The numerical design of these strategies provided a model for predicting compensation parameters to minimize profile grinding distortions.

show abstract

Section: Deep Rollingmentioning

confidence: 99%

Combination of Thermal and Mechanical Strategies to Compensate for Distortion Effects during Profile Grinding

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In previous investigations of multi-stage deep rolling, Hettig et al have shown how the internal material stresses and the resulting residual stresses can be analyzed over time [3]. If the workpiece is subdivided into several volume elements, the deep rolling tool not only has a local influence on the corresponding element directly under the tool, but also on elements farther away that were rolled over previously or will be in the later continuous process.…”

Section: Theoretical Approachmentioning

confidence: 99%

“…In this way, compressive load stresses can be introduced in a targeted manner to achieve the desired workpiece geometry. Deep rolling is a proven process for increasing the service life of components and has an increasing importance in industry [2], but it is also a promising process for distortion compensation, as shown in several experiments [3].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Deep Rolling as a Distortion Compensation Strategy during Profile Grinding

Schieber

Hettig

Zaeh

et al. 2022

KEM

View full text Add to dashboard Cite

This paper analyzes the possibility to induce residual compressive stresses utilizing deep rolling in a long, slim steel workpiece that is profile ground and that resembles a linear guide rail. These intentionally caused residual compressive stresses at the side surfaces of the workpiece are intended to counteract the distortion due to residual stresses in the V-groove of the guide rail induced by grinding. A finite element model was prepared based on the initial state of the workpiece. The amount of respective stresses depended on the load intensity and duration of the process. The experimental data regarding the residual stress profiles due to the deep rolling process and the resulting workpiece distortion were used to validate the simulation, so that an adjustment or a calibration of the thermometallurgical and thermomechanical material data was possible. The key findings are the numerical design of appropriate strategies for the distortion potential induction, the experimental distortion results, knowledge on the mechanical treatment by deep rolling, and the successful modeling of the mechanical treatment and the process strategy.

show abstract

“…Common approaches are the structuring [1,2] of grinding wheels as well as the change in grain or bond of the grinding wheel [3]. However, previous studies proofed that additional, subsequent processes such as the forming process deep rolling process can improve the surface quality [4,5]. This process leads to a decreased roughness and an increase in compressive residual stresses, which is considered as a higher surface quality [6,7].…”

Section: Introductionmentioning

confidence: 99%

Process design of a novel combination of peel grinding and deep rolling

Denkena

Kroedel

Gartzke

2021

Prod. Eng. Res. Devel.

View full text Add to dashboard Cite

Grinding is mostly considered as a finishing operation by which a high surface quality is achieved. An increase in productivity is therefore limited by maintained surface properties such as the roughness or tensile residual stresses. Thus, a roughing operation is inevitable followed by a finishing operation, while both operations are separated, leading to larger cycle times and process costs. In this paper, a novel process combination is investigated in which the roughing is done by grinding and the finishing operation by deep rolling within one tool setup. In this way, both processes are conducted parallel within the primary processing time. The objective of this study is the knowledge of the characteristics of this process combination with regard to the workpiece surface integrity. Therefore, shafts are ground in peel grinding with varying grinding wheel types and process parameters and subsequently machined with deep rolling. The process combination is evaluated with regard to the process forces and the resulting surface properties. In addition, experiments using the process combination were conducted in order to investigate the transferability of the results towards the process combination. By this approach, it was found that the surface roughness was reduced up to 80% by deep rolling showing the potential of the process combination.

show abstract

Sequential multistage deep rolling under varied contact conditions

Cited by 8 publications

References 11 publications

Combination of Thermal and Mechanical Strategies to Compensate for Distortion Effects during Profile Grinding

Combination of Thermal and Mechanical Strategies to Compensate for Distortion Effects during Profile Grinding

Modeling of Deep Rolling as a Distortion Compensation Strategy during Profile Grinding

Process design of a novel combination of peel grinding and deep rolling

Contact Info

Product

Resources

About