Numerical Simulation of the Fine Blanking Process of Sheet Titanium

Adamus, J.; Lacki, P.; Więckowski, W.

doi:10.2478/v10172-011-0046-4

Cited by 19 publications

(11 citation statements)

References 18 publications

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“…As can be expected in the case of a large clearance, the profile of the workpiece boundary causes a bad quality due to the presence of large rollover and longer fractured zone. This result is in agreement with the literature [31][32][33]. The rollover depth is over estimated by our simulations with an approximate error margin of 31%, since the springback phenomena after unloading and tools warming up during the cutting procedure have not been…”

Section: Experimental Validationsupporting

confidence: 92%

Finite element simulation and experimental investigation of the effect of clearance on the forming quality in the fine blanking process

et al. 2020

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The general concept of blanking seems a simple one but governing parameters are many and have a complex relationship , which directly affect the quality of the produced parts. These parameters are assessed using three main criterions: the burr amount, the appearance of the cut edge and dimensional accuracy. However, the optimization of these parts produced depends on full understanding of the fine blanking process. The aim of our work is to develop the numerical computations in order to investigated the influence of selected parameter of the cutting process on the stress state of cold-rolled steel sheets being cut. The material testing and the characterization are carried out in order to fit the constitutive model parameters to the experimental data and to establish the sheet metal constitutive law. The identified model is, then, used for numerical simulations which are performed using LsDyna/Explicit software of various blanking tests. During of numerical simulations of the fine blanking process was observed elongation in shear surface and simultaneous reduction in fracture zone versus clearance punch/die and also that punch is be considered deformable or not. The numerical results of the validation simulations were in agreement with the experimental data. Response to Reviewers: Response to Editor and Reviewer Comments: Ref. No.: MITE-D-20-00578 Title: Finite element simulation and experimental investigation of the effect of clearance on the forming quality in the fine blanking process We greatly appreciate the work of the editor and reviewer in evaluating this manuscript. All remarks and comments from the reviewer have been considered in the revised version of the manuscript.

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Section: Experimental Validationsupporting

confidence: 92%

Finite element simulation and experimental investigation of the effect of clearance on the forming quality in the fine blanking process

et al. 2020

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“…The Ti6Al4V alloy was used as a material for the retention elements. Despite the fact that titanium is a desirable material in medical applications due to its biocompatibility, it is a material posing lots of problems both in production and processing [7,8]. A force of 300 [N] was applied to the posterior part of the dentures, to the whole surface of tooth 36 (mandibular first left molar).…”

Section: Methodsmentioning

confidence: 99%

The Influence of Type and Design of Denture Attachment on its Efficiency of Operation in Model Tests

Jałbrzykowski

2016

KEM

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This paper presents the issue of computer modelling of selected anchors for overdentures and their impact on functionality and efficiency of operation of dentures. As the construction material for anchors, the traditional Ti6Al4V titanium alloy was used. Attention was paid to the varied force transfer during modelled mastication. A verification of anchors and actions: external load – dentures – retention elements – edging socket (e.g. mandible bone, maxilla bone, mucous membrane) was performed by means of MES. The performed simulation tests made it possible to choose the most optimal design of anchoring construction for overdentures in a given case.

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“…Simple analytical calculations are usually used during preparation of serial manufacturing [11]. These analytical calculations are sufficient for determining basic parameters of blanking process as maximal blanking force, however when problems occur during the manufacturing process the solution is often complicated and can be calculated only by using advanced numerical methods [12]. On the other hand, flanging and biting have also partly achieved automation or mechanized processing [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Design of Automatic Seaming Machine for Fire Air Ducts with 3D Model and Its Experiment

Shaohua Hu

2024

jes

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The fire air duct is one of the important components of the ventilation system in large buildings, which is is a unit system for ventilation and smoke exhaust. The ventilation system is a customized system with a wide range of applications and a high demand, resulting in the use of multiple sizes and specifications of fire air ducts. At the same time, fire air ducts are generally made of thin galvanized iron sheets, which have poor rigidity and are prone to deformation. For the two above-mentioned reasons, the seaming process of the fire air duct is currently mainly completed by manual tapping, resulting in low processing efficiency, high labor intensity, and high cost. Therefore, it is necessary to design an automated equipment that can complete the fire air duct seaming process. Firstly, a 3D model for automatic seaming machine for fire air ducts to demonstrate the working principle and a double head positioning and clamping mechanism is proposed to improve the pipe rigidity; Secondly, to adapt to most specifications for rectangular fire air ducts, a system was designed that utilizes the two right angle ends of the stitching edge for positioning and clamping without many special toolings. Thirdly, a set of automatic seaming prototype has been manufactured based on the above design ideas. The experimental results on the prototype show that the fire air duct automatic stitching machine can seam a fire air duct within 1 minute. Compared with manual processing, the processing efficiency is improved by more than 80%.

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Numerical Simulation of the Fine Blanking Process of Sheet Titanium

Cited by 19 publications

References 18 publications

Finite element simulation and experimental investigation of the effect of clearance on the forming quality in the fine blanking process

Finite element simulation and experimental investigation of the effect of clearance on the forming quality in the fine blanking process

The Influence of Type and Design of Denture Attachment on its Efficiency of Operation in Model Tests

Design of Automatic Seaming Machine for Fire Air Ducts with 3D Model and Its Experiment

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