Drilling Process Design for Hybrid Structures of Polymer Composites over Titanium Alloy

2016 ◽  
Vol 05 (03) ◽  
Author(s):  
Sherif EA ◽  
Khasawneh FA
Keyword(s):  
Titanium Alloy ◽  
Polymer Composites ◽  
Process Design ◽  
Hybrid Structures ◽  
Drilling Process

Experiments of Drilling Titanium Alloy with Varying Operation Parameters

2017 ◽  
Vol 748 ◽  
pp. 254-258
Author(s):  
Chang Yi Liu ◽  
Bai Shou Zhang ◽  
Suman Shrestha
Keyword(s):  
Titanium Alloy ◽  
Feed Rate ◽  
Thrust Force ◽  
Maximum Amount ◽  
Spindle Speed ◽  
Drilling Process ◽  
Process Variables ◽  
Experimental Cutting ◽  
Operation Parameters ◽  
Titanium Alloy Ti6al4v

Drilling experiments of titanium alloy Ti6Al4V were conducted. Taking the speed and feed as the process variables, a set of experimental cutting forces are obtained and compared. From the experimental results it is concluded that within the experimental extent the thrust force and torque of drilling process rises with the feed rate. The lower spindle speed resulted in the greater amount of thrust. Feed rates have greater influence on the thrust force than the spindle speed. The combination of greater feed rate and lower spindle speed results in the maximum amount of thrust. However, combination of greater feed rate and spindle speed resulted in maximum amount of torque.

scholarly journals Process design and modelling for milling operation of titanium alloy (Ti6Al4V) Using the Taguchi method

Procedia CIRP ◽  
2020 ◽  
Vol 91 ◽  
pp. 348-355
Author(s):  
Ilesanmi Daniyan ◽  
Isaac Tlhabadira ◽  
Adefemi Adeodu ◽  
Solomon Phokobye ◽  
Khumbulani Mpofu
Keyword(s):  
Titanium Alloy ◽  
Taguchi Method ◽  
Process Design ◽  
Milling Operation ◽  
Titanium Alloy Ti6al4v

Computer Simulation on Formation of Precision Forgings of Titanium Alloy and Superalloy

2007 ◽  
Vol 539-543 ◽  
pp. 3130-3135
Author(s):  
R.H. Wu ◽  
K.C. Pang
Keyword(s):  
Titanium Alloy ◽  
Process Design ◽  
Parameter Determination ◽  
Finite Element Models ◽  
Formation Processes ◽  
Forging Process ◽  
Deformation Features ◽  
Parameter Values ◽  
Compressor Disk ◽  
Hot Die Forging

The deformation features are analyzed for titanium alloy and superalloy during isothermal/hot die forging process, and proper finite element models with appropriate parameter values are determined. On the platform of DEFORM software, the formation processes of vane-integrated disk and compressor disk, made of titanium alloy and superalloy respectively, are simulated and analyzed. Based on the simulation results, some important suggestions to the process design and parameter determination are brought forward, which have been taken into consideration or adoption in practice. As a result, the production yield is promoted, and a large amount of expenses of testing and die trial-manufacture are saved.

Multi-Response Optimization in Drilling of Composites: Introduction of a Similarity Based Approach in Combination with Taguchi's Philosophy

2014 ◽  
Vol 14 (3) ◽  
pp. 151-170
Author(s):  
Kumar Abhishek ◽  
Saurav Datta ◽  
Siba Sankar Mahapatra
Keyword(s):  
Polymer Composites ◽  
Drilling Process ◽  
Machining Performance ◽  
Machining Processes ◽  
Specific Strength ◽  
Frp Composites ◽  
Pull Out ◽  
Composite Type ◽  
Response Optimization ◽  
Topsis Technique

AbstractIn recent years, the application of polymer composites has been enormously increased particularly in aerospace as well as in automobile sector due to its light weight, high specific stiffness and high specific strength. Machining of those composites has really become an emerging area of research. A considerable volume of research has already been carried out by the pioneers in order to study machining and machinability aspects of these composites, thereby, maintaining both product quality as well as productivity. Drilling is considered as one of the most common machining processes for assembly of composites. In case of fiber reinforced polymer (FRP) composites, delamination and fiber pull out are the major problems that arise during drilling operations. Defect free drilling whilst ensuring satisfactory machining performance (in terms of quality as well as productivity) is definitely a challenging task. In this context, the present study mainly attempts to reduce drilling induced damages and at the same time to improve machining performances during drilling of polymer composites by determining an optimal parametric combination in view of multiple process responses and by considering effects of drilling process control parameters, drill geometry (diameter of drill bit) as well as composite type. Attempt has also been made to understand the relationship (influence) between input-output(s); where, inputs i.e. process parameters have been considered like composite type, drill speed, feed rate, drill diameter and outputs have been and drilling responses like thrust force, torque, delamination at entry and exit and average surface roughness of the drilled hole. Multi-response optimization has been performed using Deng's similarity based method in combination with Taguchi's optimization philosophy. Results obtained thereof have been compared with TOPSIS (Technique for Order Preference by Similarity to Ideal Solution)-based Taguchi approach.

Thermal modeling of drilling process in titanium alloy (Ti-6Al-4V)

2020 ◽  
Vol 24 (3) ◽  
pp. 341-365
Author(s):  
Ankit Kumar ◽  
Rajneesh Bhardwaj ◽  
Suhas S. Joshi
Keyword(s):  
Titanium Alloy ◽  
Thermal Modeling ◽  
Drilling Process

Experimental Investigation of Cut Profile in the Electrochemical Drilling of Titanium Alloy

2018 ◽  
Vol 777 ◽  
pp. 327-332
Author(s):  
Ornsurang Netprasert ◽  
Noppakao Chimyo ◽  
Suphaphich Phimphun ◽  
Jantakarn Sukjan ◽  
Viboon Tangwarodomnukun ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Applied Voltage ◽  
Electrolyte Concentration ◽  
Electrochemical Machining ◽  
Machining Process ◽  
Experimental Result ◽  
Drilling Process ◽  
Electrode Gap ◽  
Electrochemical Drilling ◽  
Cut Quality

Electrochemical machining process is an advanced material removal technique offering high precision and introducing no heat damage to the work material. The shape and size of machined area are highly dependent on some process parameters such as voltage, electrolyte and inter-electrode gap. To further enable a more insight into the process performance, this paper investigates the influences of applied voltage, electrolyte concentration and inter-electrode gap on the shape and sizes of hole produced by the electrochemical drilling process. Titanium alloy (Ti-6Al-4V) was used as a work sample in this study as it has been extensively used in many advanced applications. The experimental result indicated that the use of high voltage and high electrolyte concentration can enlarge and deepen hole in the workpiece, while the inter-electrode gap provided less effect to the hole features. The maximum hole depth can reach 300 μm within 60 seconds when the applied voltage of 30 V, the inter-electrode gap of 10 μm and the electrolyte concentration of 10%wt were used. However, with this setup, the obtained cut profile became a non-uniform V-shaped hole. The use of lower voltage was instead recommended to yield a better cut quality with U-shaped profile.

scholarly journals Study on super-long deep-hole drilling of titanium alloy

2018 ◽  
Vol 16 (1_suppl) ◽  
pp. 150-156 ◽  
Author(s):  
Zhanfeng Liu ◽  
Yanshu Liu ◽  
Xiaolan Han ◽  
Wencui Zheng
Keyword(s):  
Titanium Alloy ◽  
Material Properties ◽  
Experimental Approach ◽  
Chip Morphology ◽  
Hole Drilling ◽  
Drilling Process ◽  
Deep Hole ◽  
Deep Hole Drilling ◽  
Hole Axis

Introduction: In this study, the super-long deep-hole drilling of a titanium alloy was investigated. Methods: According to material properties of the titanium alloy, an experimental approach was designed to study three issues discovered during the drilling process: the hole-axis deflection, chip morphology, and tool wear. Results: Based on the results of drilling experiments, crucial parameters for the super-long deep-hole drilling of titanium alloys were obtained, and the influences of these parameters on quality of the alloy’s machining were also evaluated. Conclusions: Our results suggest that the developed drilling process is an effective method to overcome the challenge of super-long deep-hole drilling on difficult-to-cut materials.

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