Influence of extrusion tap parameters on the forming quality of internal thread cold extrusion

Hou, Hongling; Huang, Tao; Shi, Liyi; Wang, Da-Hai; Zhang, Lirong

doi:10.1007/s00170-023-11022-y

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…[15] Roll profile measurement can be done on a roller grinder. [16,17] Nevertheless, this method requires a roll change and then offline measurement. The online roll profile meter (OPM) can measure the roll profile in real time without changing the roll, which has advantages over the traditional roll profile measurement method.…”

Section: Introductionmentioning

confidence: 99%

Study on Error Compensation Method of Online Roll Profile Measurement

Xing

Peng

Sun

et al. 2023

steel research int.

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Flatness and surface quality are important quality indexes of strip steel, and roll wear will directly affect the product's flatness and surface quality. Online roll profile measurement technology can obtain the information of roll profile in real time, guide the optimization of roll change rhythm, and improve the flatness control ability of rolling mill and surface quality of strip product. However, the error caused by roll displacement, clearance, roll thermal crown, and other factors is usually the same order of magnitude as the roll shape or roll wear, or even one order of magnitude higher. So error compensation is the key to ensuring the accuracy of online roll profile measurement. Herein, the position measurement technology of the roll bearing block is considered in the online roll profile measurement, and the measurement error caused by the deviation of the roll axis is separated. The thermal crown model is established to separate the measurement errors caused by the thermal crown. The error compensation model of online roll profile measurement is established, and the simulation calculation is carried out. This error compensation method is of great significance to improve the accuracy of online roll profile measurement and realize the fine management of mill roll in service.

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Section: Introductionmentioning

confidence: 99%

Study on Error Compensation Method of Online Roll Profile Measurement

Xing

Peng

Sun

et al. 2023

steel research int.

View full text Add to dashboard Cite

show abstract

Numerical and experimental research of the effect of friction on cold extrusion internal thread process

Hou,

Zhang,

Wang

et al. 2024

J Braz. Soc. Mech. Sci. Eng.

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Numerical simulation and experimental investigation of coating influence on extrusion tap wear

Mei,

Hou,

Zhang

et al. 2024

Sci Rep

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In order to improve the service life of extrusion taps and reduce their wear, this paper adopted the coating-simulation technology to investigate the influence laws of tool coating type and coating thickness on extrusion torque, extrusion temperature and wear amount. The validity of the numerical simulation results is confirmed through internal thread extrusion experiments. The results showed that the extrusion torque and extrusion temperature of single-layer coating and composite coating showed a tendency of decreasing and then increasing with the increase of the coating thickness; the extrusion torque and extrusion temperature of the double-layer coating increased with the increase of the coating thickness; the wear amount of the three types of coatings increased with the increase of the coating thickness. The TiAlN single coating demonstrates the most pronounced impact on decreasing extrusion torque and temperature (3.82 N·m and 88.4 °C), resulting in a smooth extrusion process. The TiAlN–TiAlN double coating exhibits the lowest wear amount of 0.076 mm. The utilization of numerical simulation proves to be a dependable approach for evaluating the efficacy of tool coatings, and reasonable selection of coating type and thickness can effectively reduce the extrusion torque, extrusion temperature and wear amount.

show abstract

Influence of extrusion tap parameters on the forming quality of internal thread cold extrusion

Cited by 3 publications

References 17 publications

Study on Error Compensation Method of Online Roll Profile Measurement

Study on Error Compensation Method of Online Roll Profile Measurement

Numerical and experimental research of the effect of friction on cold extrusion internal thread process

Numerical simulation and experimental investigation of coating influence on extrusion tap wear

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