The Effect of the Thickness-to-Die Diameter Ratio on the Sheet Metal Blanking Process

Engin, Kaan Emre; Eyerci̇oğlu, Ömer

doi:10.5545/sv-jme.2016.4272

Cited by 8 publications

(5 citation statements)

References 20 publications

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“…Shear cutting of thick sheets, as used in truck frames, is challenging due to delaminations, which makes shear cutting parameters adapted to the sheet thickness essential [11]. This effect mainly occurs at larger die clearances and forms a starting location for further crack development.…”

Section: Introductionmentioning

confidence: 99%

Effect of One- and Two-Stage Shear Cutting on the Fatigue Strength of Truck Frame Parts

Stahl

Pätzold

Golle

et al. 2020

JMMP

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The longitudinal and transverse beams of trucks are manufactured with a large number of holes to fasten brackets for springs, fuel tanks, batteries etc. The quality of the holes, which is particularly influenced by the manufacturing process, has a major influence on the fatigue strength of the beams and thus the service lifetime of the vehicle. In most cases, the holes are produced using the highly economical shear cutting process. Previous investigations have shown that the fatigue strength of thin sheets can be increased by adjusting the shearing parameters and using a two-stage shear cutting process. This paper discusses the difference between one- and two-stage shear cutting on the hole quality of components made of S500MC (1.0984, thickness 8 mm) and its resulting fatigue strength. The hole quality is characterized by the geometry of the shear cut surface, its roughness, microstructure, and microhardness. It was shown that the two-stage shear cutting process allows producing holes of better quality than the ones manufactured by a one-stage shear cutting process. Furthermore, this resulted in an improved fatigue behavior.

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Section: Introductionmentioning

confidence: 99%

Effect of One- and Two-Stage Shear Cutting on the Fatigue Strength of Truck Frame Parts

Stahl

Pätzold

Golle

et al. 2020

JMMP

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“…They established a tolerance convergence percentage of 1 % and stated that an optimal clearance could be reached when the difference between crack angles satisfied this value, indicating that no secondary cracks occurred, and good surface quality was acquired. Engin and Eyercioglu [24] and [25] studied the influence of different process parameters on 1.4301 stainless steel sheets with different thicknesses and diameters. They observed that the best surface quality on the sheared workpieces was achieved when the difference between crack propagation angles was minimal.…”

Section: Resultsmentioning

confidence: 99%

Finite Element Analysis of Notch Depth and Angle in Notch Shear Cutting of Stainless-Steel Sheet

Engin¹

2023

sv-jme

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Piercing is a crucial process in the sheet metal forming industry, and the surface quality of the pierced part is an important parameter that defines the overall quality of the product. However, obtaining a good surface quality is a challenging task that depends on the effect of several process parameters and necessitates the use of non-conventional procedures. Notch shear cutting is a relatively new progressive approach in which the workpiece is indented with a notch form with a predefined notch angle and depth, and then the indented workpiece is subjected to conventional piercing. In this study, conventional piercing and notch shear cutting processes were experimentally performed on 1.4301 stainless steel sheet of 2 mm thickness. Then, finite element (FE) analyses were conducted utilizing Deform-2D software. After ensuring that the experimental and simulation works were consistent with each other, the FE analysis of notch shear cutting was carried out for three distinct notch depths (15 %, 30 %, and 60 % of the workpiece thickness) and six different notch angles (10º, 20º, 30º, 40º, 50º, and 60º). Investigations were performed on shear zone length distributions, which are direct indications of the surface quality on sheared workpieces, crack propagation angles, and required cutting loads. The best surface quality was obtained when the notch angle was set to 50º and the notch depth was set to 15 % of the workpiece thickness. It was also observed that notch angle and notch depth had a certain level of influence on required cutting load.

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“…The basic principle of monitoring the dimensional quality [16][17][18][19][20][21][22][23][24][25] is by monitoring the key characteristics (KC) [26] of a product. Which characteristics are KC and what are their codes, comes from the Control Plan of the product.…”

Section: Methodology Of Imog Modelmentioning

confidence: 99%

Data Driven Root Cause Analyses in Multistage Manufacturing Utilising Life Cycle Wide Product Information

Belić¹,

Majstorovic

Đurđanović

et al. 2019

Teh. vjesn.

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Root cause analyses in multistage manufacturing represents inspiration for constant improvement of existing methodologies and implementation of new ones. Using quality information data from manufacturing stage and customer perception, robust model that can be utilized in line in actual manufacturing plant is created. In this paper, a new approach for managing dimensional quality and improvement of the product geometry has been presented. New methodology was checked and then applied in major automotive factory.

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The Effect of the Thickness-to-Die Diameter Ratio on the Sheet Metal Blanking Process

Abstract: The blanking process has a wide range of usage in the sheet metal production industry.

Cited by 8 publications

References 20 publications

Effect of One- and Two-Stage Shear Cutting on the Fatigue Strength of Truck Frame Parts

Effect of One- and Two-Stage Shear Cutting on the Fatigue Strength of Truck Frame Parts

Finite Element Analysis of Notch Depth and Angle in Notch Shear Cutting of Stainless-Steel Sheet

Data Driven Root Cause Analyses in Multistage Manufacturing Utilising Life Cycle Wide Product Information

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