Modelling of Process Forces in Broaching Inconel 718

Vogtel, P.; Klocke, Fritz; Puls, Hendrik; Buchkremer, S.; Lung, Dieter

doi:10.1016/j.procir.2013.06.125

Cited by 39 publications

(17 citation statements)

References 5 publications

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“…A broach structure is a complex design tool difficult to manufacture, which combines rough, transition, finishing and calibrating parts, each of which is characterized by its own structural and geometrical parameters and operates within a definite range of tooth increment. The problem of selecting an efficient tool design is complex and multidimensional, it requires the optimization of multiple industrial, design and operation factors [1,[6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Simulation and research of cylindrical broach structures stress-strain state in solidworks system

2019

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The authors considered a methodology for the automated design of cylindrical broach structures consisting of the following stages: forming a 3D-parametric geometrical broach image, assessing a broach structure stress-strain state during operation. The paper presents the results of software implementation of the algorithm for forming a broach structure parametric model from 3D-geometrical prototypes in the system Solidworks. To assess a stress-strain state of tools with the numerical method of finite elements in Solidworks Simulation, the authors formed an analytical design model taking into account strain of geometric prototypes. A series of numerical experiments was aimed at researching a stress-strain state of broach teeth under cutting forces action. According to the results of numerical experiments, by means of the least square method the authors obtained analytical expressions to estimate the influence of geometrical and design parameters of the broach teeth structure on elastic displacements of cutting edges vertice and equivalent stresses of the most loaded teeth components. The authors developed recommendations on the change of the teeth section parameters allowing for the extension of the broach structure operation life and reducing the tool life consumption for the batch of parts.

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Section: Introductionmentioning

confidence: 99%

“…At present the teeth form and dimensions in the axial section are standardized in literature and are defined in relation to the set step and in compliance to the condition of the chip groove filling degree. The dimensions h, b, r, R in the tool axial section in terms of stiffness are not justified [1,[10][11][12][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Simulation and research of cylindrical broach structures stress-strain state in solidworks system

2019

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“…Furthermore, when broaching profiled grooves in turbine discs, High Speed Steel (HSS) is still state of the art cutting material today, whereas it got replaced by high performance cutting materials such as tungsten carbide, CBN, ceramics or diamond, in the majority of machining applications. Due to the low hot hardness of HSS, the applicable cutting speeds in broaching of nickel-based alloys are not higher than 3-5 m/min [5][6][7]. The profiled grooves manufacturing process poses a bottleneck in the process chain of turbine disc production.…”

Section: Introductionmentioning

confidence: 99%

Multi-Criteria Assessment of Machining Processes for Turbine Disc Slotting

Klocke

Bergs

Doebbeler

et al. 2018

JMMP

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Many different process chains are possible to manufacture profiled grooves in turbine discs. Broaching with high speed steel tools is still state of the art today but as a consequence of the rising demand for aero engines, the disc manufacturers are striving for alternative high performance processes to increase both flexibility and productivity in the manufacturing of these safety critical features. Broaching machines are oftentimes at a bottleneck in the production of rotating turbine discs. Several other machining processes have been discussed in the context of slotting, such as broaching with carbide tools, milling, water jet machining, W-EDM and grinding. Within this paper a multi-criteria assessment approach is presented dealing with slotting processes. The assessment comprehends economical, ecological, flexibility and productivity criteria, and is based on data gathered with an aero engine OEM. The technological aspects such as tool life and productivities are based on real machining tests that have been carried out within the project HoFePro. The assessment is conducted for multiple profile shapes that represent different sizes and geometrical complexities of profiled grooves. The manufacturing processes within the assessment include broaching with HSS and carbide, milling with ceramics and carbide (side and end) as well as profile milling with carbide tools. The underlying workpiece material is a nickel-based alloy.

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“…Optimization process of broaching and reaming tools is continuous and uninterrupted. In this respect, one can see some recent publications: a paper dedicated to geometrical optimization of broaching tool [3]; articles dedicated to the analysis of the distribution of forces in the process of holes machining [4][5][6]; U.S. Patent of a new broaching tool, about which there are many new patents issued every year concerning new designs of tools, and this particular patent is only an example of such a continuous process [7,8]. Articles dedicated to the analysis of the relationship of the cutting forces with the resulting surface quality.…”

Section: Introductionmentioning

confidence: 99%

Multiflute Drill-Broach for Precision Machining of Holes

Kasenov¹,

Dudak²,

Itybaeva³

et al. 2018

Scientia Iranica

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This paper deals with hole-enlarging multi-ute drilling process. In this respect, the analysis of existing structures, their advantages and disadvantages is carried out and investigated. Cutting conditions during hole-enlarging multi-ute drilling process are shown. Herein, a new design of a hole-enlarging multi-ute drilling, as a holeenlarging multi-ute drill-broaching tool from broaching-speed steel with carbide plates, and a new way of handling new tools are presented. Hole-enlarging multi-ute drillbroaching combines the features of hole-enlarging multi ute drill (in cross-section) and those of broaching tool (in longitudinal section). In so doing, it is possible to increase the quality of hole-making (size variance, surface roughness) to facilitate cutting conditions and increase durability. The results of prototypes testing are presented in the end.

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Modelling of Process Forces in Broaching Inconel 718

Cited by 39 publications

References 5 publications

Simulation and research of cylindrical broach structures stress-strain state in solidworks system

Simulation and research of cylindrical broach structures stress-strain state in solidworks system

Multi-Criteria Assessment of Machining Processes for Turbine Disc Slotting

Multiflute Drill-Broach for Precision Machining of Holes

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