Prediction of the sound pressure level of blanking noise during sheet-metal blanking using servo press with counterforce

Xia, Qinxiang; Xu, Teng; Hong, Guohua; Weiping, Ruan

doi:10.1007/s12206-014-0312-2

Cited by 7 publications

(7 citation statements)

References 15 publications

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“…Stamping forces were simplified into constant values or function equations in previous simulation research, 5 which was not consistent with the experimental stamping forces. A series of stamping forces during the manufacturing of the heat exchanger fin part 21 were obtained using the library of Force element.…”

Section: Import Of Slider Displacement-depended Stamping Forces In Mumentioning

confidence: 98%

“…4 For the punching press with unreasonable structure design or insufficient stiffness, the vibration at a high stoke frequency is more serious than that at a low stroke frequency (generally 150-200 cpm). 5 The inertia force of the slider crank mechanism, which is considered as the main cause of the punching press vibration, 6 increases quadratically with the increase in stroke frequency. 7 Forming defects, such as warping, hole collapse, fracture and burr, occur frequently even under a slight vibration during the stamping of heat transfer fins due to small thickness of the fin.…”

Section: Introductionmentioning

confidence: 99%

“…Variable speed curve of servo motor.acceleration of the slider. PID control formula expressed in equation(5) was adapted u(t) = K p e(t)…”

mentioning

confidence: 99%

See 2 more Smart Citations

A study on multi-domain modeling and simulation of precision high-speed servo numerical control punching press

Xia

Long

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part I:

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The multi-domain modeling and simulation of the precision high-speed punching press was carried out using the software SimulationX in this article. The key technical problems of the multi-domain modeling, such as the establishment of the subsystems of mechanics with accurate structures and dimensions, improvement of modeling accuracy and simulation efficiency by dividing and dealing with components in group and import of the displacement-depended stamping forces on the stamping dies, have been resolved to establish the integral multi-domain model, which contains subsystems of mechanics, hydraulic and servo driven of the complete punching press. Vibration quantity of the punching press was predicted through simulation, and validity of the multi-domain model was confirmed by experimental measurement. The vibration reduction in the punching press based on the topology optimization of the slider and design of rotational speed variation curve of the servo motor were investigated. The results show that through topology optimization, the mass of the slider could be decreased under the premise of guaranteeing the structural strength, by which the vibration quantity of the punching press can be decreased; rotational speed of the servo motor could be decreased during the stamping period by designing the rotational speed variation curve, which leads to a decrease in acceleration and vibration of the slider during that period, with which the forming precision can be guaranteed.

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Section: Import Of Slider Displacement-depended Stamping Forces In Mumentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A study on multi-domain modeling and simulation of precision high-speed servo numerical control punching press

Xia

Long

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part I:

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“…Xia et al examined the effect of material type, sheet thickness, and punch speed on noise in sheet metal blanking. They determined that the noise level increases with the increase in material strength, sheet thickness, and speed 24 . Murakawa et al succeeded to reduce the noise level in the blanking by using hydraulic inertia damper 25 .…”

Section: Introductionmentioning

confidence: 99%

The effects of punch angle in noise and force formation for sheet metal blanking process

Çavuşoğlu

Gürün

Kafkas

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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The paper is concerned with the effect of punch angle (0°, 4°, 8°, 16°), sheet thickness (0.8, 2 mm), and punch speed (25, 37.5 mm / min) on the force formation and noise in the blanking of DP600 dual-phase steel sheet. The blanking experiments were carried out in a modular blanking die. The blanking force and noise variables were obtained simultaneously during the blanking using a load cell and noise measuring device, respectively. It was determined that the blanking force significantly decreased with an increasing punch angle, while noise formation decreased. The increase in the punch speed slightly increased the amount of noise while it did not affect the blanking force significantly.

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“…Heattransfer fins are commonly manufactured using a highspeed numerically controlled (NC) punching press with a multiposition progressive die. Serious vibration occurs readily during the manufacture of the heat-transfer fins owing to the complexity of the structure and high frequency of stroke of the high-speed NC punching press when the structural design is unreasonable or the rigidity of the press is insufficient [3,4]. Forming defects, such as fractures and wrinkling during the stamping of heat-transfer fins, are induced by even a slight vibration of the press because of the thin walled structure of the fin.…”

Section: Introductionmentioning

confidence: 99%

Vibration Control of a High-Speed Precision Servo Numerically Controlled Punching Press: Multidomain Simulation and Experiments

Xia

Long

et al. 2017

Shock and Vibration

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A three-degree-of-freedom mathematical vibration model of a high-speed punching press was developed in order to explore the vibration modes of the punching press. A multidomain model of the punching press was established to predict the kinematic state during different conditions, as well as the effects of load fluctuation on the motor speed. Experimental measurements of the acceleration of the punching press were carried out. The results comparison reveals that the multidomain model is consistent with the vibration model and the experimental measurements. Modal analysis and structure modification of the punching press were conducted. The foundation at the base of the punching press was improved against excess of vibration. The effects of the dimensions of the foundation on the vibration were discussed with the aid of the multidomain model. Finally, proper foundation design, able to reduce the vibration, was obtained.

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Prediction of the sound pressure level of blanking noise during sheet-metal blanking using servo press with counterforce

Cited by 7 publications

References 15 publications

A study on multi-domain modeling and simulation of precision high-speed servo numerical control punching press

A study on multi-domain modeling and simulation of precision high-speed servo numerical control punching press

The effects of punch angle in noise and force formation for sheet metal blanking process

Vibration Control of a High-Speed Precision Servo Numerically Controlled Punching Press: Multidomain Simulation and Experiments

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