Diagnosis of tapping process using spindle motor current

Li, Wei; Li, D.; Ni, Jun

doi:10.1016/s0890-6955(02)00142-6

Cited by 37 publications

(25 citation statements)

References 9 publications

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“…For cut tapping there are some researchers dedicated to develop models for the process: mechanistic models for the prediction of tapping torque including identification of faults typical of a tapping operation (as misalignment, runout and tooth breakage); [Cao and Sutherland, 2002] e [Mezentsev et al, 2002], unified-generalized mechanics of cutting model, as it is called on [Armarego and Chen, 2002], and experimental studies, as in [Li et al, 2003] that used the electrical current signal of the spindle motor for diagnosis.…”

Section: Introductionmentioning

confidence: 99%

Analytical and experimental investigations on thread milling forces in titanium alloy

Araujo

Fromentin

Poulachon

2013

International Journal of Machine Tools and Manufacture

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. AbstractThis study deals with thread milling process that it is considered a complex machining technique due to its elaborated tool geometry and its tridimensional tool trajectory. It is needed advanced research on the threading process which has not been much studied. Previous studies focused on geometrical modeling or mechanistic modeling of the thread milling process. There is a need of a better understanding of parameter effects to accomplish a model that tends to be more realistic and includes local parameters. This investigation does the analysis of thread milling parameters: thread geometry, cutting conditions and tool angles, which can be applied to the tool optimization. The cutting forces and torque were measured and representative values of its variation were calculated and analyzed as response of the experiments. A geometrical analysis and an analysis of variance were employed for determining the influence of the factors and based on the results, it is proposed a physical understanding of the process.

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Section: Introductionmentioning

confidence: 99%

Analytical and experimental investigations on thread milling forces in titanium alloy

Araujo

Fromentin

Poulachon

2013

International Journal of Machine Tools and Manufacture

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“…Oleg A et al proposed a fault identification system for conventional tapping using radial forces, and the fault detection capability of the tapping model was validated with a Kistler four-axis dynamometer on Mori Seiki CNC machine [7]. W.Li et al presented a two-stage pair-wise feature selection and classification tapping fault diagnostic approach using electrical current of the spindle motor, and achieved a 93% success rate on average [8]. But little has been done on the monitoring of vibration tapping, except for Zhang's investigated on monitoring of the tool breakage for vibration tapping.…”

Section: Introductionmentioning

confidence: 99%

On-line tool breakage monitoring of vibration tapping using spindle motor current

Liu

2008

SPIE Proceedings

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Input current of driving motor has been employed successfully as monitoring the cutting state in manufacturing processes for more than a decade. In vibration tapping, however, the method of on-line monitoring motor electric current has not been reported. In this paper, a tap failure prediction method is proposed to monitor the vibration tapping process using the electrical current signal of the spindle motor. The process of vibration tapping is firstly described. Then the relationship between the torque of vibration tapping and the electric current of motor is investigated by theoretic deducing and experimental measurement. According to those results, a monitoring method of tool's breakage is proposed through monitoring the ratio of the current amplitudes during adjacent vibration tapping periods. Finally, a low frequency vibration tapping system with motor current monitoring is built up using a servo motor B-106B and its driver CR06. The proposed method has been demonstrated with experiment data of vibration tapping in titanic alloys. The result of experiments shows that the method, which can avoid the tool breakage and giving a few error alarms when the threshold of amplitude ratio is 1.2 and there is at least 2 times overrun among 50 adjacent periods, is feasible for tool breakage monitoring in the process of vibration tapping small thread holes.

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“…Mathematical models are needed to characterize the relationship and to predict possible fault patterns based on the process conditions. In the past, a lot of research has been conducted on pattern recognition [7][8][9][10][11]; however, very little has been done to develop fault pattern models. Without such a model, fault diagnosis is limited to only what has been observed and cannot cover all the possible fault occurrences.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing process diagnosis using functional regression

2007

Journal of Materials Processing Technology

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Diagnosis of tapping process using spindle motor current

Cited by 37 publications

References 9 publications

Analytical and experimental investigations on thread milling forces in titanium alloy

Analytical and experimental investigations on thread milling forces in titanium alloy

On-line tool breakage monitoring of vibration tapping using spindle motor current

Manufacturing process diagnosis using functional regression

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