Transactions of Materials and Heat Treatment

Title：Influences of air pressure and rotating speed on bottom dead center of high-speed press

Authors： LU Xin-jian1 ZHEN Wen-qing2 TIAN Hong-zhong2 LI Li-ming2(1.Engineering College Nanjing Agricultural University Nanjing 210031 China 2.Jiangsu Xuzhou Metal-Forming Machine Group Co. Ltd. Xuzhou 221116 China)

Unit：

KeyWords： press rotational speed of the crank bottom dead center

ClassificationCode：TG305

year,vol(issue):pagenumber：2009,34(1):115-118

Abstract：

Using the bottom dead center measuring apparatus,the wave-form test was made for some kinds of high-speed presses,which revealed the varying regulation of the bottom dead center when the static balancing air pressure and the crank's rotating speed varied without load.The reason causing this regulation was analyzed,the curvilinear equation was established and its significance was checked,the improving measures were also offered to enhance the precision of the bottom dead center.

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Reference：

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