Universal lathes currently have a place in manufacturing industry. Its processing status monitoring is an urgent problem to be solved because it related the quality of produced products. Traditional methods mainly use vibration sensors monitor lathe. This paper proposes modulated signal bispectrum (MSB) method analyse current signals AC motor, which can machining state lathe connected with moto...

The 92nd general meeting was held at the University of Warwick, Coventry, from 3 to 5 April 1974. Abstracts of the scientific communications follow. The Guest Lecture was given by Dr C. F. Hawkins on 'Speaking at meetings'. Two symposia were held, one on 'Systemic manifestations of intravascular coagulation' (Chairman: Professor E. K. Blackburn), and the other on 'Jaundice' (Chairman: Professor...

Today, machine tools play a vital role in the production of parts any manufacturing industry. The dimensional accuracy and surface finish work piece depends mainly on condition machine. Vibration occurring has been being serious problem for engineers many decades. Undesired relative vibrations between tool work-piece jeopardize quality surfaces during cutting.
 Many Condition Monitoring Te...