Method of varying focus-extremum of critical penetrating current measuring electron beam dynamic focal spot

Qi Zhou; Fang Jun Liu; Qiao Guan

Method of varying focus-extremum of critical penetrating current measuring electron beam dynamic focal spot

Qi Zhou^*
, Fang Jun Liu
, Qiao Guan

^*此作品的通讯作者

Natl. Weapons Sci. Res. Acad.
Beihang University
China Aviation Industry Corporation

科研成果: 期刊稿件 › 文章 › 同行评审

3 引用（Scopus）

摘要

With studying conduction current of workpiece, the rules between average ratio of conduction current of workpiece and electron beam current are discovered. The peak of average ratio of conduction current corresponds to the transferring point of critical penetration in the dynamic process of electron beam welding. By the characteristics of critical penetration current, the focusing states of electron beam influenced by metal vapor and transmitting in drift space are discussed. The concept of dynamic focal spot of electron beam is put forward. The method of measuring dynamic focal spot of electron beam is presented, through varying focus-extremum of critical penetration current.

源语言	英语
页（从-至）	77-79+84
期刊	Hanjie Xuebao/Transactions of the China Welding Institution
卷	25
期	5
出版状态	已出版 - 10月 2004
已对外发布	是

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title = "Method of varying focus-extremum of critical penetrating current measuring electron beam dynamic focal spot",

abstract = "With studying conduction current of workpiece, the rules between average ratio of conduction current of workpiece and electron beam current are discovered. The peak of average ratio of conduction current corresponds to the transferring point of critical penetration in the dynamic process of electron beam welding. By the characteristics of critical penetration current, the focusing states of electron beam influenced by metal vapor and transmitting in drift space are discussed. The concept of dynamic focal spot of electron beam is put forward. The method of measuring dynamic focal spot of electron beam is presented, through varying focus-extremum of critical penetration current.",

keywords = "Conduction current of workpiece, Critical penetration, Dynamic focal spot, Electron beam welding, Ratio of conduction current",

author = "Qi Zhou and Liu, \{Fang Jun\} and Qiao Guan",

year = "2004",

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language = "英语",

volume = "25",

pages = "77--79+84",

journal = "Hanjie Xuebao/Transactions of the China Welding Institution",

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publisher = "Harbin Research Institute of Welding",

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TY - JOUR

T1 - Method of varying focus-extremum of critical penetrating current measuring electron beam dynamic focal spot

AU - Zhou, Qi

AU - Liu, Fang Jun

AU - Guan, Qiao

PY - 2004/10

Y1 - 2004/10

N2 - With studying conduction current of workpiece, the rules between average ratio of conduction current of workpiece and electron beam current are discovered. The peak of average ratio of conduction current corresponds to the transferring point of critical penetration in the dynamic process of electron beam welding. By the characteristics of critical penetration current, the focusing states of electron beam influenced by metal vapor and transmitting in drift space are discussed. The concept of dynamic focal spot of electron beam is put forward. The method of measuring dynamic focal spot of electron beam is presented, through varying focus-extremum of critical penetration current.

AB - With studying conduction current of workpiece, the rules between average ratio of conduction current of workpiece and electron beam current are discovered. The peak of average ratio of conduction current corresponds to the transferring point of critical penetration in the dynamic process of electron beam welding. By the characteristics of critical penetration current, the focusing states of electron beam influenced by metal vapor and transmitting in drift space are discussed. The concept of dynamic focal spot of electron beam is put forward. The method of measuring dynamic focal spot of electron beam is presented, through varying focus-extremum of critical penetration current.

KW - Conduction current of workpiece

KW - Critical penetration

KW - Dynamic focal spot

KW - Electron beam welding

KW - Ratio of conduction current

UR - https://www.scopus.com/pages/publications/19944427676

M3 - 文章

AN - SCOPUS:19944427676

SN - 0253-360X

VL - 25

SP - 77-79+84

JO - Hanjie Xuebao/Transactions of the China Welding Institution

JF - Hanjie Xuebao/Transactions of the China Welding Institution

IS - 5

ER -

Method of varying focus-extremum of critical penetrating current measuring electron beam dynamic focal spot

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