Effect of Lubrication and Forging Load on Surface Roughness, Residual Stress, and Deformation of Cold Forging Tools

Karunathilaka, Nuwan; Tada, Naoya; Uemori, Takeshi; Hanamitsu, Ryota; Fujii, Masahiro; Omiya, Yuya; Kawano, Masahiro

doi:10.3390/met9070783

Cited by 10 publications

(7 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to improve the life of cold forging tool, et al suggested the usage of lubricant with application of moderate forging load that yielded better results than those obtained at dry conditions with higher forging loads. [ 43 ]…”

Section: Effect Of Input Parameters On the Forging Process Responsesmentioning

confidence: 99%

A Systematic Review of Factors Affecting the Process Parameters and Various Measurement Techniques in Forging Processes

Sharma

Gupta

et al. 2023

steel research int.

View full text Add to dashboard Cite

Forging is a primary manufacturing process used in several manufacturing industries. Aircraft and automobile industries are manufacturing products with high‐dimensional accuracy and quality that are highly precise or near the required shape. Customers require products that are free of cracks and fulfill their functional requirements. This leads to the advancement of the forging process due to its ability to form complicated and intricate shapes. Herein, a detailed review of the aspects of forging is given in which the optimization of factors like preform design, forging conditions, workpiece dimensions, die design, lubricant properties, and thermal treatment parameters are discussed, enhancing the tool life and forging quality of the product. The selection of die‐forging tool material and methods for enhancing the surface quality of forged products are also reviewed. The article also presents methods for measurement of forging quality, tool life, machine effectiveness, forging image acquisition, and forging parameters, which can significantly reduce the risk of error at every step of the forging process. This review serves as a reference for researchers to increase production rate, enhance the effectiveness of measurement system, and improve the quality of forged products with technological advancement.

show abstract

Section: Effect Of Input Parameters On the Forging Process Responsesmentioning

confidence: 99%

A Systematic Review of Factors Affecting the Process Parameters and Various Measurement Techniques in Forging Processes

Sharma

Gupta

et al. 2023

steel research int.

View full text Add to dashboard Cite

show abstract

“…Plastic deformation generates residual stress when the load exceeds the elastic limit materials. An increase in the forging load resulted in large surface roughness, compressive residual stress, downward displacement, average height change and outer diameter change [26] [27].…”

Section: Microstructure and Hardness Analysismentioning

confidence: 99%

“…After 1 hour of immersion, the samples without heat treatment (1A and 2A) reached an OCP of about -456.6 mV for a 50-ton load and -465.3 mV vs SCE for loading 75 tons. The distribution of ferrite with a phase containing Fe3C plays an important role in the initiation and mechanism of corrosion [26] [28]. In the 2D sample, there is an increase in the potential value towards the more positive after 3000 s. It allows the formation of a protective layer formed between the pearliteferrite phase in a bainite network.…”

Section: Corrosion Analysis Of Laterite Steel A588-1%nimentioning

confidence: 99%

Effect of forging load and heat treatment process on the corrosion behavior of A588-1%NI for weathering steel application in a marine environment

Rohmah¹,

Paristiawan²,

Romijarso³

2022

Sinergi

View full text Add to dashboard Cite

The study focused on the effect of forging load and heat treatment on the corrosion behavior of A588-1%Ni weathered steel. The samples used were hot forged steel (A588%-1%Ni) with a load of 50 tons and 75 tons at a temperature of 800-850 °C. The test sample was reheated at an intercritical temperature between A3–A1, around 780 °C, held for 1 hour, and then cooled to room temperature. The cooling media used are water, oil, and open air. Forging loads and heat treatment variation affect the microstructure and corrosion rate of A588-1%Ni. Based on the metallographic test and after the hot forging process, A588-1%Ni laterite steel has a microstructure as ferrite-perlite. Then, after heat treatment as ferrite and cementite-containing phase, pearlite, bainite, or martensite may very well. Cooling water delivers a uniformly distributed lath martensite with an acicular ferrite phase. In addition, the oil media creates bainite with an acicular ferrite phase coarser size. The open-air media produces a pearlite + ferrite phase. Corrosion behavior of laterite steel subjected to hot forging process and followed by heat treatment was evaluated in 3% NaCl solution. Oil cooling with bainite-ferrite microstructure has the lowest corrosion rate, which is 11.96x10-3 mmpy.

show abstract

“…3 The majority of forging research has concentrated on the influence of temperature and strain rate, lubrication, forging load and workability. [4][5][6] Seetharam et al 7 studied the densification behaviour of powder metallurgy Al-B 4 C preforms. The relationship between the formability stress index (β σ ) and axial strain (ϵ z ) as a function of relative density (R) was established during the hot forging process.…”

Section: Introductionmentioning

confidence: 99%

Role of pre-strain on the corrosion behaviour of Al-Zn-Mg P/M alloy

Krishna

Davidson

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part L:

View full text Add to dashboard Cite

In the present study, Al-Zn-Mg alloy has been fabricated through the powder metallurgy route by keeping Zn content at 5.6% and varying Mg from 0% to 3%. The optimum composition of Mg was found to be 2% based on relative density, microhardness and microstructure. Al-5.6Zn-2Mg was subjected to deformation at various temperatures (300 °C, 400°C and 500°C) and strain rates (0.5, 0.05 and 0.005). Potentiodynamic polarization and electrochemical impedance spectroscopy were used to assess the electrochemical behaviour of deformed preforms. Scanning electron microscopy was utilized to study the microstructure and corrosion morphology of Al-5.6Zn-2Mg under different conditions. In the present study, deformation behaviour (axial strain (εz), formability stress index (βσ)) has been related to mechanical (hardness) and electrochemical properties (corrosion rate, pitting potential (Epit)). By increasing deformation, potentiodynamic polarization results showed a decrease in corrosion current density (icorr) and an increase in pitting potential, which increased the corrosion resistance of the alloy. The corrosion resistance of the alloy increased significantly by increasing deformation temperature and lowering strain rate. Corrosion rate also decreases with an increase in axial strain and formability stress index. The corrosion mechanisms found in deformed preforms were pitting and intergranular corrosion. The corrosion morphologies also revealed the closure of pores due to increase in temperature and a decrease in strain rate.

show abstract

Effect of Lubrication and Forging Load on Surface Roughness, Residual Stress, and Deformation of Cold Forging Tools

Cited by 10 publications

References 28 publications

A Systematic Review of Factors Affecting the Process Parameters and Various Measurement Techniques in Forging Processes

A Systematic Review of Factors Affecting the Process Parameters and Various Measurement Techniques in Forging Processes

Effect of forging load and heat treatment process on the corrosion behavior of A588-1%NI for weathering steel application in a marine environment

Role of pre-strain on the corrosion behaviour of Al-Zn-Mg P/M alloy

Contact Info

Product

Resources

About