Analysis of ultrasonic-assisted drilling of Ti6Al4V

Pujana, Joseba; Rivero, A.; Celaya, A.; Lacalle, Luís Norberto López de

doi:10.1016/j.ijmachtools.2008.12.014

Cited by 195 publications

(95 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As reported by Pujana and co-workers (Pujana et al, 2009), the cutting temperature was higher when using ultrasonic-assisted drilling in comparison to the non-vibration drilling. In this case, the higher the vibration amplitude, the higher the temperature variations.…”

Section: Temperaturesupporting

confidence: 61%

Machinability of Titanium Alloys in Drilling

Sharif¹,

Rahim²,

Sasahara³

2012

Titanium Alloys - Towards Achieving Enhanced Properties for Diversified Applications

View full text Add to dashboard Cite

Section: Temperaturesupporting

confidence: 61%

Machinability of Titanium Alloys in Drilling

Sharif¹,

Rahim²,

Sasahara³

2012

Titanium Alloys - Towards Achieving Enhanced Properties for Diversified Applications

View full text Add to dashboard Cite

“…The process relies on the application of ultrasonic vibrations of 2-20 μm and 20-45 kHz amplitude and frequency, respectively, which is superimposed in the feed direction of the cutting edges during drilling. The CFRP results of this method demonstrate lower thrust forces, lower surface roughness, smaller delamination and improved circularity compared to CD [38]. Nevertheless, higher cutting temperatures are observed during UAD of CFRPs and titanium alloys individually which are proportional to the ultrasonic amplitude due to energy consumption as the tool vibrates.…”

Section: Examined Materialsmentioning

confidence: 99%

“…Nevertheless, higher cutting temperatures are observed during UAD of CFRPs and titanium alloys individually which are proportional to the ultrasonic amplitude due to energy consumption as the tool vibrates. Measurements of drilled through stacks of CFRP/Ti6Al4V, produced by UAD and CD with a three-point bore micrometre has shown more consistent and closer to nominal diameters for UAD [37][38][39][40]. The application of UAD demonstrates promising results and further investigation is required, while the combination of CFRPs and titanium alloys introduces unforeseen challenges that depend on the nature of the specific combination of CFRP and titanium alloy.…”

Section: Examined Materialsmentioning

confidence: 99%

“…The utilisation of UAD in the drilling of CFRP has been shown to improve the quality of the holes, while the results for its application on titanium alloys are more varied, with some studies demonstrating different results for different alloys and others showing benefits with lower thrust forces. It is generally accepted that UAD increases tool life, which affects the quality of the holes, due to less titanium adhesion on the cutting edges and less edge chipping which corresponds to reduced titanium burr [36][37][38][39]. The process relies on the application of ultrasonic vibrations of 2-20 μm and 20-45 kHz amplitude and frequency, respectively, which is superimposed in the feed direction of the cutting edges during drilling.…”

Section: Examined Materialsmentioning

confidence: 99%

See 1 more Smart Citation

A metrological inspection method using micro-CT for the analysis of drilled holes in CFRP and titanium stacks

Kourra

Warnett

Attridge

et al. 2016

Int J Adv Manuf Technol

View full text Add to dashboard Cite

This paper demonstrates a novel method that combines X-ray computed tomography (CT) and image processing for investigating two materials with significantly different densities. CT is increasingly used in industrial applications of inspecting materials and defects. The limitations of the system and data reconstruction are continuously researched so as to improve the quality of the results. One of the most common issues in CT is beam hardening, frequently experienced in multi-material scanning. The materials examined to demonstrate the method are carbon fibre reinforced polymers (CFRP) and titanium alloy Ti6Al4V, often used in combination in industry to optimise the weight to strength ratio. The assembly of the materials is usually achieved by bolting and riveting, which requires drilling through the two materials together. The machining of these materials is difficult due to their higher specific properties and as a result tool wear is always an issue. CFRPs properties depend on the nature, orientation and bond of the fibres and as a result drilling affects their service life. The results of the method ensure the quality of the drilled holes by measuring the variation of the maximum diameter, circularity, positioning of the hole and an examining the entrance delamination and exit burrs by image processing.

show abstract

“…Although ultrasonic assistance provides superiority, there are a number of drawbacks. For instance, due to the higher tool tip temperature and variations in ultrasonic assisted drilling, Pujana et al (2009) argued that the heat generation mechanism needed further study.…”

Section: Ultrasonic Assisted Drillingmentioning

confidence: 99%

A review of hybrid manufacturing processes – state of the art and future perspectives

Zhu

Dhokia

Nassehi

et al. 2013

International Journal of Computer Integrated Manufacturing

249

View full text Add to dashboard Cite

Today, hybrid manufacturing technology has drawn significant interests from both academia and industry due to the capability to make products in a more efficient and productive way. Although there is no specific consensus on the definition of the term 'hybrid processes', researchers have explored a number of approaches to combine different manufacturing processes with the similar objectives of improving surface integrity, increasing material removal rate, reducing tool wear, reducing production time and extending application areas. Thus, hybrid processes open up new opportunities and applications for manufacturing various components which are not able to be produced economically by processes on their own. This review paper starts with the classification of current manufacturing processes based on processes being defined as additive, subtractive, transformative, joining and dividing. Definitions of hybrid processes from other researchers in the literature are then introduced. The major part of this paper reviews existing hybrid processes reported over the past two decades. Finally, this paper attempts to propose possible definitions of hybrid processes along with the authors' classification, followed by discussion of their developments, limitations and future research needs.

show abstract

Analysis of ultrasonic-assisted drilling of Ti6Al4V

Cited by 195 publications

References 37 publications

Machinability of Titanium Alloys in Drilling

Machinability of Titanium Alloys in Drilling

A metrological inspection method using micro-CT for the analysis of drilled holes in CFRP and titanium stacks

A review of hybrid manufacturing processes – state of the art and future perspectives

Contact Info

Product

Resources

About