Experimental investigation on the influence of the lubricant type in the punch stretching of extra deep-drawing steel

Tigrinho, Luiz Mauricio Valente; Santos, Ricardo Adriano dos; Filho, Ravilson Antonio Chemin; Marcondes, Paulo Victor Prestes

doi:10.1590/s1678-58782008000400004

Cited by 13 publications

(6 citation statements)

References 6 publications

(3 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this regards, high viscose lubricant such as silicone emulsion remains more continuous than the liquid paraffin which effectively keeps separate the punch and the sheet metal surfaces. More homogeneous deformation will result into products with lower residual stresses [23]. The liquid lubricants did not show the same performance as the silicone emulsion.…”

Section: Finite-element Simulationmentioning

confidence: 89%

“…In sheet metal stamping, several variables must be taken into account such as the material's mechanical properties, tool's geometry, interface lubrication between punch and sheet metal, and deformation rate [23]. Performing sliding friction tests, the coefficients of friction between surfaces which are affected by lubricants defined in Table 1 were measured.…”

Section: Finite-element Simulationmentioning

confidence: 99%

See 1 more Smart Citation

Influence of process parameters on residual stresses in deep-drawing process with FEM and experimental evaluations

Kardan

Parvizi

Askari

2018

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

This paper presents experimental and simulation study to minimize residual stress in cylindrical deep-drawing process. Eight significant process parameters including initial blank thickness, punch and die shoulder radii, blank-holder force, punch velocity, and coefficients of friction between die-blank, holder-blank, and punch-blank are considered. According to number of parameters, the Taguchi's method is employed to perform design of experiments. The die is designed and manufactured, and the experiments are carried out using AISI 1006 carbon steel sheet. Hole-drilling method based on ASTM E 837-99 standard is applied to measure the residual stresses in drawn cups. Moreover, the deep-drawing process is simulated wholly using ABAQUS/explicit software and the accuracy of finite-element model is verified using experimental results. Finally, the analysis of variance method is applied to define the most important parameters and obtain an optimum level to minimize the residual stress in cylindrical deep-drawing process. Keywords Deep-drawing Á Residual stress Á Taguchi method Á Optimization Á Finite-element method Á Experiments List of symbols BHF Blank-holder force (KN) r d Die shoulder radius (mm) r p Punch shoulder radius (mm) l d Coefficient of friction between die and blank l h Coefficient of friction between holder and blank l p Coefficient of friction between punch and blank

show abstract

Section: Finite-element Simulationmentioning

confidence: 89%

Section: Finite-element Simulationmentioning

confidence: 99%

Influence of process parameters on residual stresses in deep-drawing process with FEM and experimental evaluations

Kardan

Parvizi

Askari

2018

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…The results revealed that the lubricant, which is having less coefficient of friction value produced better and quality surfaced parts as compared to the other. 13,14 Lubricants are commonly utilized between both the punch and sheets during forming processes to overcome friction and increase the formability of the sheets. Lubricant permits the punch's interface pressure to be more evenly distributed, which greatly enhances the surface finish of produced blanks.…”

Section: Introductionmentioning

confidence: 99%

Influence of coefficient of friction between punch-blank interface on formability of friction stir welded aluminum tailor welded blanks – An experimental and finite element simulation investigations

Battina¹,

Chirala²,

Ramu³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

The influence of the coefficient of friction between punch-blank interface on the formability of friction stir welded aluminum tailor welded blanks was studied. Experimental and finite element investigations were performed to evaluate the formability with four different lubricants like dry lubricant, graphite in water, graphite in machine oil, and Teflon sheet (TS). During simulation, the boundary condition of the punch-blank interface was assigned as a frictional contact and the assigned value is the coefficient of friction value of the respective lubricant. To carry out the simulation, the entire blank was divided into three zones. It has been found that the coefficient of friction between punch-blank interfaces has a significant influence on formability. In the four lubrication conditions, the dry lubrication applied blank exhibited the lowest formability properties, and the TS applied blank exhibited superior formability properties in all aspects such as punch load-carrying capacity, limiting dome height, forming limit diagrams, and strain distribution profiles (experimentation and simulation). The experimental and simulation have a good agreement in all strain conditions. The standard deviation between the experimental and simulation results is ±10%.

show abstract

“…In addition to petroleum-based synthetic lubricants, vegetable lubricants have been very popular in recent years [ 12 , 13 ]. Natural-origin lubricants have good lubricating properties, mainly due to their specific chemical structure [ 14 , 15 ]. Vegetable oils have long hydrocarbon chains and functional groups, such as carboxyl or amine, and often also a double bond.…”

Section: Introductionmentioning

confidence: 99%

Polynomial Multiple Regression Analysis of the Lubrication Effectiveness of Deep Drawing Quality Steel Sheets by Eco-Friendly Vegetable Oils

Trzepieciński

2022

Materials

View full text Add to dashboard Cite

Ensuring adequate lubrication is a key task in the sheet metal forming process. The replacement of commonly used synthetic lubricants in metal forming operations by eco-friendly equivalents is a way to introduce sustainable manufacturing. In this paper, six kinds of vegetable oils (linseed, palm, sunflower, cotton seed, soybean and coconut) were used to study the effect of lubricant type on the value of the coefficient of friction (COF) in sheet metal forming. The strip drawing test was used to simulate the friction conditions. The tests were carried out for various lubrication conditions and pressures. The polynomial quadratic regression model was used to determine the relationship between the input variables (test conditions) and the COF. For the range of the nominal pressures considered (2–12 MPa), the following oils provided the highest lubrication efficiency: palm, sunflower and cotton seed. These oils decreased the value of the COF by about 11–16% depending on the nominal pressure. Linseed oil had the most unfavourable properties, reducing the COF by about 7–12%. For the whole range of pressures considered, the increase in the viscosity of the oil caused a reduction in the value of the COF. The effect of oil density on the COF value was similar. The most unfavourable friction conditions occurred when there was low density and low viscosity of the oil at the same time.

show abstract

Experimental investigation on the influence of the lubricant type in the punch stretching of extra deep-drawing steel

Cited by 13 publications

References 6 publications

Influence of process parameters on residual stresses in deep-drawing process with FEM and experimental evaluations

Influence of process parameters on residual stresses in deep-drawing process with FEM and experimental evaluations

Influence of coefficient of friction between punch-blank interface on formability of friction stir welded aluminum tailor welded blanks – An experimental and finite element simulation investigations

Polynomial Multiple Regression Analysis of the Lubrication Effectiveness of Deep Drawing Quality Steel Sheets by Eco-Friendly Vegetable Oils

Contact Info

Product

Resources

About