Research on Vibration Drilling 1Cr18Ni9Ti Stainless Steel Micro-Hole

2012 ◽  
Vol 591-593 ◽  
pp. 423-427
Author(s):  
Peng Zhang ◽  
Yan Jing ◽  
Xing Yu Guo
Keyword(s):  
Stainless Steel ◽  
Hole Drilling ◽  
Drilling Process ◽  
Drill Bit ◽  
Drilling Force ◽  
Process Mechanism ◽  
Micro Hole ◽  
Vibration Drilling ◽  
Hole Machining

The austenite 1Cr18Ni9Ti stainless steel is one of difficult-to-cut materials. It has poor dilling process, especially for micro-hole machining. The main reasons are the tiny drill, poor rigidity, easy to deviation. Moreover, the chip is difficult to discharge, so the drilling force is increased and the drill bit is easy to break, or even it is impossible for micro-hole drilling. In this paper, the vibration drilling process is adopted. The vibration drilling 1Cr18Ni9Ti stainless steel micro-hole process mechanism is researched. The stainless steel micro-hole drilling experiments are conducted. The results show that the vibration drilling can be a better solution for 1Cr18Ni9Ti stainless steel micro-hole processing.

Vibration Drilling the 0Cr18Ni9Ti Stainless Steel Micro-Hole

2012 ◽  
Vol 217-219 ◽  
pp. 1592-1595 ◽  
Author(s):  
Peng Zhang ◽  
Chang Hong Mei ◽  
Xing Yu Guo
Keyword(s):  
Stainless Steel ◽  
Hole Drilling ◽  
Drilling Process ◽  
Drill Bit ◽  
Drilling Force ◽  
Process Mechanism ◽  
Micro Hole ◽  
Vibration Drilling ◽  
Hole Machining

Austenite 0Cr18Ni9Ti stainless steel is one of difficult-to-cut materials. It has poor dilling process, especially for micro-hole machining. The main reasons are the tiny drill, poor rigidity, easy to deviation. Moreover, the chip is difficult to discharge, so the drilling force is increased and the drill bit is easy to break, or even it is impossible for micro-hole drilling. In this paper, the vibration drilling process is adopted. The vibration drilling 0Cr18Ni9Ti stainless steel micro-hole process mechanism is researched. The stainless steel micro-hole drilling experiments are conducted. The results show that the vibration drilling can be a better solution for 0Cr18Ni9Ti stainless steel micro-hole processing.

Research of Micro Hole Vibration Drilling Process and Experiment

2011 ◽  
Vol 697-698 ◽  
pp. 161-165 ◽  
Author(s):  
Peng Zhang ◽  
Xing Yu Guo ◽  
Cheng Ge Wu
Keyword(s):  
Manufacturing Industry ◽  
Defense Industry ◽  
Hole Drilling ◽  
Drilling Process ◽  
Drilling Machine ◽  
Micro Hole ◽  
The Common ◽  
Position Precision ◽  
Vibration Drilling ◽  
Hole Machining

It is always the difficulties for micro hole machining in the machine manufacturing industry, even more in the defense industry. The vibration drilling new craft, with the incomparable advantages in micro hole drilling, is different from the common one. The precision NC micro hole vibration drilling machine is developed, and the micro hole drilling experiments are conducted. The vibration drilling can not only improve the drill life more than ten times compared with the normal one, but also improve the centering ability and position precision.

Study on the Stainless Steel 1Cr18Ni9Ti Micro-Hole Drilling Experiment

2014 ◽  
Vol 596 ◽  
pp. 43-46 ◽  
Author(s):  
Ben Hong Li ◽  
Zhi Liu ◽  
Hao Wang ◽  
Zao Sheng Zhong
Keyword(s):  
Stainless Steel ◽  
High Speed ◽  
Tool Material ◽  
High Speed Steel ◽  
Cutting Parameters ◽  
Hole Drilling ◽  
Analysis Method ◽  
Drilling Force ◽  
Micro Hole ◽  
Hole Machining

Stainless steel is difficult to machine, especially micro-hole machining. In order to obtain the effect of drilling force by tool material and cutting parameters, the drilling experiments on stainless steel 1Cr18Ni9Ti have been done by diameter of 1.2 mm containing cobalt high speed steel and carbide drill. According to the experimental results, analysising the reason of drilling force change under different parameters and establishing a carbide drill drilling force empirical formula which combined with the regression analysis method.

Experimental Study on Ultrasonic Vibration Drilling of Titanium Alloy Micro-Hole

2012 ◽  
Vol 588-589 ◽  
pp. 1877-1880 ◽  
Author(s):  
Zhan Feng Liu ◽  
Huan Chang Zhang
Keyword(s):  
Titanium Alloy ◽  
Ultrasonic Vibration ◽  
Cutting Parameters ◽  
Hole Drilling ◽  
Drilling Process ◽  
Basic Principles ◽  
Actual Structure ◽  
Tc4 Titanium Alloy ◽  
Micro Hole ◽  
Vibration Drilling

Through the analysis of the basic principles of vibration drilling and vibration drilling process, in the drilling device and the cutting parameter sides , combined with the actual structure of the workpiece as well as the ultrasonic vibration drilling processing methods to elaborate, using the ultrasonic vibration drilling device to carry out the TC4 titanium alloy micro-hole drilling test. The test prove that selecting reasonable cutting parameters can solve the problem of drillingTC4 titanium alloy micro-hole that size is Φ1.5mm × 12mm , fully reflects the superiority of the ultrasonic vibration drilling. A new method was afforded for titanium alloy micro-hole drilling.

Study on the Effects of the Geometrical Parameter of Twist Drill on the Drilling Performance of Stainless Steel

2011 ◽  
Vol 189-193 ◽  
pp. 2251-2254
Author(s):  
Xing Jun Gao ◽  
Ping Zou ◽  
Qing Liu ◽  
Hong He Gao
Keyword(s):  
Stainless Steel ◽  
Unit Length ◽  
Edge Length ◽  
Geometrical Parameters ◽  
Drilling Process ◽  
Drill Bit ◽  
Twist Drill ◽  
Drilling Force ◽  
Drilling Performance ◽  
Twist Drills

The key geometrical parameters of twist drills that had a great effect on the drilling performance of stainless steel were studied by Pro/E and DEFORM-3D softwares. The influence of chisel edge and tip angle of twist drill on the drilling force, torque and tool wear in the drilling process was researched, and meantime the effects were introduced by shortened the chisel edge length or adopted S-shape helical drill points as well. The tip angle of drill bit that affected the main cutting edge length, the cutting load on unit length, the proportion between cutting width and cutting thickness in the cutting lay, the cutting force, the torque, the chip formation and chip removal was introduced in detail. The choice of tip angle of twist drill was introduced. In drilling, it has important instructional significance for improvement of life of drill bit, advancement of productivity of drilling and processing quality of hole.

FEA of Micro-Hole Drilling in Stainless Steel Based on DEFORM-3D

2012 ◽  
Vol 531 ◽  
pp. 566-570 ◽  
Author(s):  
Quan Sun ◽  
Bo Gao ◽  
Chong Chang Yang ◽  
Bing Bing Chen
Keyword(s):  
Stainless Steel ◽  
Theoretical Calculation ◽  
Hole Drilling ◽  
Drilling Process ◽  
Feed Speed ◽  
Element Analysis ◽  
Calculation Results ◽  
Micro Hole ◽  
Cutting Processes ◽  
Deform 3D

In order to better understand the micro-hole cutting processes in stainless steel, the cutting process of 1Cr18Ni9Ti stainless steel was modeled and simulated by FEA (Finite Element Analysis) based on DEFORM-3D software. The influence of rotation speed and feed speed on the thrust force and torque of 1Cr18Ni9Ti stainless steel were analyzed. Meanwhile, the comparisons of simulated results and theoretical calculation results were taken into consideration. It is found that the simulation data from DEFORM-3D agreed well with the theoretical calculation results. It confirms that the results of simulation based on DEFORM-3D have a high level of reliability. The findings of the present study provide a new way to systematically investigate the stainless steel micro-hole drilling process.

Drilling Characteristics of SiC Particle Reinforced Aluminum-Matrix Composites with Ultrasonic Vibration

2010 ◽  
Vol 455 ◽  
pp. 302-306 ◽  
Author(s):  
Xing Xin Xu ◽  
Xiao Hui Zhang ◽  
Chuan Shao Liu ◽  
Bo Zhao
Keyword(s):  
Surface Quality ◽  
Ultrasonic Vibration ◽  
Rapid Development ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composites ◽  
Drilling Process ◽  
Matrix Composites ◽  
Drilling Force ◽  
Vibration Drilling ◽  
Sic Particle

With the rapid development of aviation at home, particle reinforced metal matrix composites (PRMMCs) has been widely applied recently. But at the same time, the difficult machining has gradually been one of the most outstanding bottle-necks that restrict the rapid enhancement of productivity. Here, in virtue of the self-developed ultrasonic drilling equipment, hole-making experiments of common and ultrasonic vibration drilling are performed on SiC particle reinforced aluminum-matrix composites （SiCp/Al）with different content of SiC by using two types of tungsten carbide drill. Drilling characteristics of machining composites with ultrasonic vibration are analyzed from such respects as the composites crush, drilling force, drill wear and hole surface quality. Studies show that, during the ultrasonic vibration drilling process, SiC particle in the composites is prone to break along the crystal connection boundary or suffer ductile fracture under the dynamic ultrasonic impulse, in which the cutting resistance could be reduced and the tool edge could be protected. Thereby, drilling locating precision and hole surface quality could be enhanced, wear of the drill chisel edge effectively improved, and the drilling torque reduced about 30%.

scholarly journals On the influence of thermal processes on the dynamics of a drill during deep hole machining

2019 ◽  
Vol 298 ◽  
pp. 00008
Author(s):  
Leonid Kondratenko ◽  
Lubov Mironova
Keyword(s):  
Heat Source ◽  
Dimensional Accuracy ◽  
Thermal Processes ◽  
Drilling Process ◽  
Drill Bit ◽  
Dynamic Features ◽  
Deep Drilling ◽  
Gun Drill ◽  
Heat Sinking ◽  
Hole Machining

Deep drilling process has been studied and dynamic features of interaction the cutting part of the gun drill with the detail have been identified. Thermal processes of cutting and heat sinking in the interacting chains were analyzed: “heat source – workpiece”; “heat source - chips”; heat source – tool”; “heat source – cooling liquid”. It has been noted that the vibrations lead to the loss of dimensional accuracy of the part fabrication as well as hole surface quality. Mathematical dependence of the longitudinal and torsional oscillations of the cutting drill bit is determined and the influence of heat flow pulsations on the friction coefficients and cutting force is revealed.

Research on Chip Breaking Feature of the Micro Hole Vibration Drilling

2011 ◽  
Vol 694 ◽  
pp. 616-619
Author(s):  
Peng Zhang ◽  
Xing Yu Guo ◽  
Kang Pei Zhao ◽  
Li You Zhu
Keyword(s):  
Machining Process ◽  
Chip Breaking ◽  
Process Effects ◽  
Micro Drilling ◽  
Micro Hole ◽  
Breaking Mechanism ◽  
Vibration Drilling ◽  
On Chip ◽  
Hole Machining ◽  
Chip Removal

It is often one of the most important issues for chip breaking and chip removal problems in the hole machining process, especially for micro hole. The chip breaking mechanism of the vibration drilling is researched, and its chip breaking conditions is analyzed. The micro drilling experiments are carried to contrast the chip shape of common drilling and vibration one. It can be draw that the vibration drilling can realize the regular chip breaking, which is beneficial to chip removal in hole machining, the chip breaking feature is one of the fine process effects. This work further enriches the vibration drilling technology.

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