Numerical Simulation and Experimental Investigation of Cold-Rolled Steel Cutting

The paper presents results of the investigations on numerical computations and experimental verification concerning the influence of selected parameters of the cutting process on the stress state in bundles of cold-rolled steel sheets being cut using a guillotine. The physical model and, corresponding to it, the mathematical model of the analysed steel sheet being cut were elaborated. In this work, the relationship between the cutting depth and the values of reduced Huber–Mises stresses as well as the mechanism of sheet separation were presented. The numerical simulations were conducted by means of the finite element method and the computer system LS-DYNA. The results of numerical computations are juxtaposed as graphs, tables, and contour maps of sheet deformation as well as reduced Huber–Mises strains and stresses for selected time instants. The microscopic tests revealed two distinct zones in the fracture areas. The ductile and brittle zones are separated at the depth of ca. 1/3 thickness of the cut steel sheet.

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Modelling of Guillotine Cutting of a Cold-Rolled Steel Sheet

Materials ◽

10.3390/ma12182954 ◽

2019 ◽

Vol 12 (18) ◽

pp. 2954 ◽

Cited By ~ 3

Author(s):

Jarosław Kaczmarczyk

Keyword(s):

Steel Sheet ◽

Cutting Process ◽

Experimental Investigations ◽

Rolled Steel ◽

The Finite Element Method ◽

Cold Rolled Steel ◽

Cold Rolled ◽

Cutting Processes ◽

Professional Tool ◽

Good Agreement

In this paper, the modelling of a cutting process of a cold-rolled steel sheet using a symmetrical cutting tool is presented. The fast-changing nonlinear dynamic cutting process was elaborated by means of the finite element method and the computer system LS-DYNA. Experimental investigations using scanning electron microscopy were performed and the results are presented in this work. The numerical results were compared with experimental ones. The comparison shows a good agreement between the results obtained by means of numerical modelling and those received from experimental investigations. The numerical simulations of the cutting process and the experimental investigations aimed to understand the mechanism of the cutting process. They serve as a highly professional tool for carrying out research investigating the behavior of complex nonlinear fast-changing dynamical cutting processes in the future.

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Continuously cold-rolled steel sheet products. Dimensional and shape tolerances

10.3403/03225521 ◽

2005 ◽

Keyword(s):

Steel Sheet ◽

Rolled Steel ◽

Cold Rolled Steel ◽

Cold Rolled ◽

Sheet Products

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Improving the plasticity of thin cold-rolled steel sheet for cold stamping

Steel in Translation ◽

10.3103/s0967091216050053 ◽

2016 ◽

Vol 46 (5) ◽

pp. 364-367 ◽

Cited By ~ 2

Author(s):

I. V. Doshchechkina ◽

S. S. D’yachenko ◽

I. V. Ponomarenko ◽

I. S. Tatarkina

Keyword(s):

Steel Sheet ◽

Rolled Steel ◽

Cold Rolled Steel ◽

Cold Rolled ◽

Cold Stamping

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Spot Weldability Assessment of Similar and Dissimilar Steel Sheets for Light Weight Automobile Body

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.306-308.899 ◽

2006 ◽

Vol 306-308 ◽

pp. 899-904

Author(s):

Dong Ho Bae ◽

Won Seok Jung ◽

J.B. Heo

Keyword(s):

Stainless Steel ◽

Fatigue Strength ◽

Lap Joints ◽

Vehicle Body ◽

Rolled Steel ◽

Cold Rolled Steel ◽

Steel Sheets ◽

Automobile Body ◽

Cold Rolled ◽

Spot Welded

An effective way to reduce the weight of vehicle body seems to be application of new materials, and such trend is remarkable. Among the various materials for automobile body, stainless steel sheets and cold rolled steel sheets are under the interests. However, in order to guarantee reliability of new material and to establish the long life fatigue design criteria for body structure, it is necessary to assess spot weldability and fatigue strength of spot welded lap joints fabricated under optimized spot welding condition. In this paper, spot weldability of stainless steel sheets, STS301L and STS304L, and cold rolled steel sheets, SPCC and SPCD. Fatigue strength of lap joints spot welded between similar and dissimilar materials were also assessed.

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