A novel approach in high performance deep hole drilling of Inconel 718

2019 ◽  
Vol 56 ◽  
pp. 432-437 ◽  
Author(s):  
Afzaal Ahmed ◽  
M.T. Lew ◽  
P. Diwakar ◽  
A. Senthil Kumar ◽  
M. Rahman
Keyword(s):  
Inconel 718 ◽  
High Performance ◽  
Hole Drilling ◽  
Deep Hole ◽  
Deep Hole Drilling ◽  
Novel Approach

Tiefbohren von thermoplastischen Kunststoffen*/Single-lip deep hole drilling of thermoplastics

2016 ◽  
Vol 106 (05) ◽  
pp. 336-340
Author(s):  
D. Prof. Biermann ◽  
M. Kirschner
Keyword(s):  
Process Optimization ◽  
High Performance ◽  
Hole Drilling ◽  
Manufacturing Processes ◽  
Metallic Materials ◽  
Deep Hole ◽  
Deep Hole Drilling

Hochleistungskunststoffe gewinnen stetig an industrieller Bedeutung und ersetzen in zahlreichen Anwendungen metallische Werkstoffe. Um dieser Entwicklung auch aus fertigungstechnischer Sicht gerecht zu werden, ist die parallele Optimierung von relevanten Fertigungsverfahren unumgänglich. Das Institut für spanende Fertigung ISF der Technischen Universität Dortmund nimmt sich aktuell einer dieser Herausforderungen an und beschäftigt sich mit der Prozessoptimierung des Einlippentiefbohrens thermoplastischer Kunststoffe.   High-performance plastics are steadily gaining ground in the industry, replacing metallic materials in numerous applications. To keep pace with this development in manufacturing, a synchronous optimization of relevant manufacturing processes is crucial. The Institute of Machining Technology currently deals with one of these challenges, focusing on the process optimization of single-lip deep hole drilling of thermoplastics.

Experimental Investigation of Bubble-Mixed Cutting Fluid Delivery for Micro Deep-Hole Drilling

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Chi-Ting Lee ◽  
Soham S. Mujumdar ◽  
Shiv G. Kapoor
Keyword(s):  
High Performance ◽  
Cutting Fluid ◽  
Hole Drilling ◽  
Drilling Process ◽  
Deep Hole ◽  
Delivery Method ◽  
Dry Cutting ◽  
Deep Hole Drilling ◽  
Fluid Delivery ◽  
Drilling Performance

In drilling, chip-clogging results in increased drilling temperature, excessive tool wear, and poor hole quality. Especially, in microdrilling, low rigidity of the tool and inability of cutting fluid to penetrate narrower tool–workpiece interface significantly reduce the drilling performance. A novel bubble-mixed cutting fluid delivery method proposed in this research aims toward achieving a high-performance micro deep-hole drilling process with a significant reduction in the consumption of cutting fluid. Experimental results show that the bubble-mixed cutting fluid delivery method achieves lower thrust force during drilling, higher drilled depth before tool breakage, and lower dimensional and circularity errors when machining deep holes in comparison with dry cutting or conventional flood delivery method. It is also found that the smaller-sized bubbles effectively penetrate the tool–workpiece interface during the drilling producing deeper holes by better chip evacuation and cooling.

Experimental Study on Deep Hole Drilling Gamma Titanium Aluminide

2010 ◽  
Vol 455 ◽  
pp. 293-296 ◽  
Author(s):  
Lin Zhu ◽  
Xin Chen ◽  
Bernd Viehweger
Keyword(s):  
Titanium Aluminide ◽  
High Performance ◽  
Cutting Temperature ◽  
Tool Material ◽  
High Strength ◽  
Experimental Result ◽  
Hole Drilling ◽  
Deep Hole ◽  
Gamma Titanium Aluminide ◽  
Deep Hole Drilling

γ-titanium aluminide is a new intermetallic structural material. γ-titanium aluminide alloy has the advantages of high temperature resistance, high performance of anti-oxidation effect, low-density, high specific strength and rigidity etc. But high strength, hardness and brittleness of the material also make processing difficultly. High cutting force and cutting temperature affecting a decline in cutting lifetime and cutting efficiency. This problem is more acute in deep hole drilling. In this paper, we have analyzed the cutting performance of γ-titanium aluminide and designed a deep-hole drills with appropriate tool material and geometric parameters. The experimental result shows: this drill bit is stable and efficient in drilling and can achieve a good quality.

scholarly journals Influence of Burnishing Axial Interference on Hole Surface Quality in Deep Hole Drilling of Inconel 718

2016 ◽  
Vol 5 ◽  
pp. 1295-1307 ◽  
Author(s):  
S. Malarvizhi ◽  
Akshay Chaudhari ◽  
Keng Soon Woon ◽  
A. Senthil Kumar ◽  
Mustafizur Rahman
Keyword(s):  
Surface Quality ◽  
Inconel 718 ◽  
Hole Drilling ◽  
Deep Hole ◽  
Deep Hole Drilling
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