Feasibility study of delamination in rotary ultrasonic-assisted drilling of glass fiber reinforced plastics

Baraheni, Mohammad; Amini, Saeid

doi:10.1177/0731684417729565

Cited by 30 publications

(10 citation statements)

References 56 publications

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“…(3) As usual, the right image in Fig. 8 is seen during the drilling of layered material like additive manufactured ones [28]. Thus, delamination in drilling of PLA+ material is not negligible, but it could be reduced to that much it is desired.…”

Section: Delaminationmentioning

confidence: 87%

Evaluating the Hole Quality Produced by Vibratory Drilling: Additive Manufactured PLA+

Baraheni

Shabgard

Amini

2021

Preprint

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Improving the surface quality of additive manufactured parts like poly lactic acid (+) is an important study that is currently being carried out by researchers. To reach the high quality, different conventional and non-conventional methods are applied. In this study, the capability of ultrasonic vibration in drilling of an additive manufactured poly lactic acid (+)was examined. The process was implemented in two methods: conventional and vibratory drilling. Then, thrust force and chip type were analyzed and the effect of them on surface roughness, delamination, circularity, and cylindricality have been investigated. As a result, it was indicated that lower thrust force and broken chips, which were generated in ultrasonic drilling, caused the surface quality parameters to be improved compared to the conventional method.

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Section: Delaminationmentioning

confidence: 87%

Evaluating the Hole Quality Produced by Vibratory Drilling: Additive Manufactured PLA+

Baraheni

Shabgard

Amini

2021

Preprint

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“…Lesser amount of delamination is achieved by a tool which has larger grain size while conducting experiment on lower fiber volume composites. Additionally it is found that high feed rate and lower spindle speed induces more amount of delamination [21].…”

Section: Effect On Surface Integrity 431 Delaminationmentioning

confidence: 99%

A Review on Effect of Process Parameters on Machining Characteristics of Rotary Ultrasonic Machine

Singh¹,

Joshi²,

Saraswat³

2020

SKIT Research Journal

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Ultrasonic machining (USM) is a process used for machining material with high hardness and brittle nature that are difficult to machine. The USM has an upper hand on the other non-conventional process like electron discharge and laser beam machining which have thermal effect on workpiece. Workpiece chracteristics are also not limited by chemical and electrical properties. This paper discusses about the rotary ultrasonic drilling (RUD) machining process which is a variant of USM and the recent developments that it gone under through the RUD. This paper also reviews about the various methodology adopted by researchers to achieve optimum output parameters like Material Removal Rate, Surface roughness, Edge chipping etc. by altering the process characteristics like spindle speed, feed rate, ultrasonic power etc. as well as machine characteristics like tool type, support length etc. The paper also deals with the material used with the RUD worldwide and the findings of researchers on them.

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“…Delamination is one of the phenomena which can be occurred during the post processing of additively manufactured parts considering the fact that these kinds of parts are produced layer by layer [23]. Accordingly, a variety of layered materials can be failed if delamination is happened.…”

Section: Delaminationmentioning

confidence: 99%

Drilling of Additive Manufactured Poly Lactic Acid Modified byDrilling of Additive Manufactured Poly Lactic Acid Modified by Ultrasonic Vibration Ultrasonic Vibration

Baraheni

Shabgard²,

Amini³

2021

Preprint

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Complex geometries can be produced by using additively manufacturing method (AM). As usual, the AM parts have rough surfaces in which post processing operations are needed. One of the useful operations is ultrasonic drilling process. In this process, an additional movement is added to the cutting tool to improve the machinability factors. In this study, poly lactic acid(+) was selected as workpiece where the quality of the holes generated by ultrasonic drilling, were investigated. The examination parameters were delamination, circularity, and cylindricality. As a result, it was shown that UD process could properly improve the examination parameters. It was explained that harmonic movement of drill bit in UD improved the stability of the process by a decrease in cutting forces and chip adhesion. Moreover, a significant reduction was observed in delamination factor by using ultrasonic vibrations.

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Feasibility study of delamination in rotary ultrasonic-assisted drilling of glass fiber reinforced plastics

Cited by 30 publications

References 56 publications

Evaluating the Hole Quality Produced by Vibratory Drilling: Additive Manufactured PLA+

Evaluating the Hole Quality Produced by Vibratory Drilling: Additive Manufactured PLA+

A Review on Effect of Process Parameters on Machining Characteristics of Rotary Ultrasonic Machine

Drilling of Additive Manufactured Poly Lactic Acid Modified byDrilling of Additive Manufactured Poly Lactic Acid Modified by Ultrasonic Vibration Ultrasonic Vibration

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