Evaluation of friction using double cup and spike forging test for dry-in-place coating and forming oils

Kim, Jeong-Hun; Ko, Byung-Ho; Kim, Jae-Hong; Lee, Kyung-Hun; Moon, Young-Hoon; Ko, Dae-Cheol

doi:10.1016/j.triboint.2020.106361

Cited by 13 publications

(6 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The findings show that the high formation suggests lesser friction during the compression test throughout a range of lengths, but this is only the case when the width of the workpiece is taken into consideration. 27 In comparison to the NA-O sample, the palm oil sample shows larger workpiece formation over the whole die stroke range; CMFO shows the greatest formation, while PMO shows a moderate formation, during the compression process.…”

Section: Case Ii: Closed Forging Testmentioning

confidence: 83%

Modelling the Tribological Performance of Palm mid olein in Cold Forging Test using DEFORM-3D

Yahaya

Samion

Abidin

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

In the past, most metal-forming lubricants used mineral oils or other hazardous compounds as their primary foundation. Due to their non-toxic and biodegradable qualities, vegetable oils have the potential to replace mineral oil as a lubricant. Palm oil's byproduct is presently being researched as a biolubricant in order to expand its market beyond cooking oil. Modeling a finite element approach is one of the excellent predictions in tribological tests, notably in metal forming processes. The purpose of this paper is to serve as a modelling the metal forming process and demonstrate the use of palm mid olein as a biolubricant. The metal forming test is essential to the understanding of materials and engineering research because of the friction, wear behaviour, and deformation it produces. Utilizing aluminum (AA1100) as a specimen, this study compared the results of using palm oil-based metal forming oil to those of using commercial metal forming oil. In order to better understand the forging process, we analyse the material flow patterns of these parts at different die stroke levels. According to the findings, the friction of both tested experiment is slightly different where in ring compression test (RCT) test palm mid olein (PMO) has a higher friction ( m = 0.20 and μ = 0.0937) compare to commercial metal forming oil (CMFO) ( m = 0.15 and μ = 0.075) but in closed forging test, the friction PMO has found to be lower ( m = 0.39/μ = 0.159) compare to the CMFO ( m = 0.42/μ = 0.1675). From the investigated result also, PMO has a potential to be utilized as a metal forming lubricant.

show abstract

Section: Case Ii: Closed Forging Testmentioning

confidence: 83%

Modelling the Tribological Performance of Palm mid olein in Cold Forging Test using DEFORM-3D

Yahaya

Samion

Abidin

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

show abstract

“…AISI 1010 low-carbon steel has been popularly applied in automobile generators, due to its excellent magnetic flux density, and AISI 1010 low-carbon steel rods consistently show the highest magnetic flux density values, compared to the AISI 1018, AISI 1045, and AISI 1045-high Mn/stress-proof steel rods [ 2 ]. The current forming process of low-carbon steel automobile generator claw poles mainly adopts multi-pass hot die forging, which has a large forming force, and a high requirement on the die [ 3 , 4 ]. Moreover, the traditional multi-pass hot die forging process of claw poles is long, the energy consumption is high, and there are defects, such as segregation, internal cracks, and pores in the formed parts.…”

Section: Introductionmentioning

confidence: 99%

Study on the Semi-Solid Thixotropic Forging Forming Process for the Low-Carbon Steel Claw Pole

Wang²,

et al. 2023

Materials

View full text Add to dashboard Cite

Low-carbon steel has been popularly applied in numerous applications because of its unique features, such as good plasticity, high strength, great hardness, and excellent toughness. Additionally, the semi-solid thixotropic forging forming method has been widely used in light alloys, due to its advantages of low forming force and high forming quality, whereas its application in ferrous materials is still limited. In this study, the semi-solid thixotropic forging forming process is proposed for producing the low-carbon steel claw pole, with the main stages being radial forging deformation, isothermal treatment, and forging forming. The effect of the area reduction rate on the effective strain from the cross sections of the radial-forged metal bar was studied using numerical simulations. The effect of the isothermal holding process on the microstructures of radial-forged billets was investigated, to obtain the ideal semi-solid microstructures. The microstructure and mechanical properties of low-carbon steel claw poles from the thixotropic forging experiment are presented and discussed. It was found that when the area reduction rate was 67%, the effective strain at the edge of the metal bar exceeded 5.0, while the effective strain at the center was above 1.2, indicating an excellent quality of forging for the bar. The optimization of the process parameters for preparing low-carbon steel semi-solid billets with fine and globular microstructures was achieved with an area reduction rate of 67%, an isothermal temperature of 1500 °C, and a duration time of 15 min. Moreover, the low-carbon steel claw pole fabricated with the optimized operating parameters was found fully filled, with a sharp profile and a flat surface, where the yield strength and tensile strength increased by 88.5% and 79.8%, respectively, compared to the starting materials.

show abstract

“…Schrader et al proposed a method for designing double-cup extrusion experiment that was more sensitive to friction changes based on the evaluation of double-cup extrusion [10]. Kim et al evaluated frictional characteristics by double-cup and spike forging experiments [11]. The friction coefficients were obtained by matching the cup height ratios and spike heights in the experiments and simulations.…”

Section: Introductionmentioning

confidence: 99%

Investigation on friction characteristics of micro double cup extrusion assisted by different ultrasonic vibration modes

Wan

Cheng²,

Xu³

et al. 2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Ultrasonic assisted plastic micro-forming is a research hotspot in metal forming process. The friction characteristic is a key factor affecting the micro-forming properties of metal in ultrasonic assisted micro-forming process. However, the existed researches were mostly focused on the friction characteristics of free surfaces, while few were studied on the friction characteristics between sample and mold cavity. In this paper, the micro double cup extrusion experiments of copper T2 were conducted to investigate the friction characteristics between sample and mold cavity with multiple ultrasonic vibration modes. Furthermore, the numerical model was developed to quantify the friction stress reduction caused by multiple ultrasonic vibration modes and estimate its contribution to decreasing the forming stress, which was usually considered mainly affected by acoustic softening, stress superposition and friction reduction. The results show that the forming stress and the surface roughness of extruded samples are decreased sequentially with the multiple ultrasonic vibration modes of tool vibration (TV), workpiece vibration (WV) and compound vibration (CV). The cup height ratios of double cup extrusion are also increased sequentially with the ultrasonic vibration modes. But the increase of cup height ratio does not indicate the increase of friction coefficient. The friction stress reduction between sample and mold cavity is increased sequentially with TV, CV and WV modes, and its contribution to decreasing the forming stress is 48%, 15% and 49%, respectively.

show abstract

Evaluation of friction using double cup and spike forging test for dry-in-place coating and forming oils

Cited by 13 publications

References 26 publications

Modelling the Tribological Performance of Palm mid olein in Cold Forging Test using DEFORM-3D

Modelling the Tribological Performance of Palm mid olein in Cold Forging Test using DEFORM-3D

Study on the Semi-Solid Thixotropic Forging Forming Process for the Low-Carbon Steel Claw Pole

Investigation on friction characteristics of micro double cup extrusion assisted by different ultrasonic vibration modes

Contact Info

Product

Resources

About