Profile Design of the Helical Groove Milling Tool

2013 ◽  
Vol 706-708 ◽  
pp. 1496-1499 ◽  
Author(s):  
Ji Ping Chen ◽  
Rui Jun Yang
Keyword(s):  
Cutting Tool ◽  
Profile Curve ◽  
Cusp Point ◽  
Milling Cutter ◽  
Milling Tool ◽  
Blade Shape ◽  
Helical Groove ◽  
Smooth Connection ◽  
Profile Design ◽  
Tool Profiles

In the process of milling special helicoid , there is a cusp point between its profile curve and linear esicoaginal junction . Ordinary milling cutter can't processing .If milling tool profiles are calculated and designed by smooth connection, the findings of milling tool profiles will appear profiles jagged or profiles detached phenomena. For separation of milling cutter blade shape, in order to prevent point was cut off, it can be treated with the method of open groove, but the two point easy to wear and affect the durability of the cutting tool. Solving method of transitional profiles of detached section is given.

On Cutting and Hobbing Gears and Worms

1943 ◽  
Vol 10 (3) ◽  
pp. A139-A146
Author(s):  
D. W. Dudley ◽  
H. Poritsky
Keyword(s):  
Cutting Tool ◽  
Gear Tooth ◽  
Milling Cutter ◽  
Gear Cutting ◽  
Special Cases

Abstract Two problems are treated in this paper, i.e., (1) given the shape of the milling cutter tooth or of the hob tooth, to find out what is the resulting shape of the worm or gear surface; (2) given the desired shape of a worm or gear tooth, what shape of the milling or hobbing tooth will produce it. These problems are fundamental to all cutter and hob design. Except for special cases, the solution of these problems obtained in the following treatise is believed to be new. The general equations which enable one to determine exactly the relation between the shape of the cutting tool and the shape of tooth produced are obtained in the present paper by going back to the fundamentals of the motion of a milling cutter or a hob and the motion of the worm, or gear part being cut. With these equations available it is possible to design precision tools for any worm or gear-cutting job, thus eliminating guesswork in the design, and possible delays, such as are involved in “cut-and-try” shop methods.

CNC Milling Tool of Choice to Explore

2013 ◽  
Vol 706-708 ◽  
pp. 1246-1249
Author(s):  
Da Lin Zhang ◽  
Ji Lin Guo ◽  
Tian Rui Zhou
Keyword(s):  
Type Structure ◽  
Cnc Machining ◽  
Machining Efficiency ◽  
Processing Quality ◽  
Cnc Milling ◽  
Tool Selection ◽  
Milling Cutter ◽  
Milling Tool

The CNC tool selection is an important factor affecting the CNC machining efficiency and parts processing quality. In this paper, based on the analysis of the CNC milling cutter type, structure, diameter, angle, economy and other factors, a reasonable strategy to select the tool.

An Experimental Study on Electric Hot Milling for T10A Tool Steel

2011 ◽  
Vol 117-119 ◽  
pp. 1843-1846
Author(s):  
Yu Cai Chen ◽  
Xi Wang ◽  
Li Bing Liu ◽  
Dong Ting Liao ◽  
Fei Wu
Keyword(s):  
Tool Steel ◽  
Cutting Tool ◽  
Wavelet Packet ◽  
Machining Process ◽  
Signal Acquisition ◽  
Dry Milling ◽  
Vibration Signals ◽  
Milling Tool ◽  
Milling Method ◽  
Tool Durability

This paper introduces a kind of electric hot milling method for T10A tool steel and analyses its feasibility. Collect temperature signals and vibration signals in the machining process by a set of signal acquisition system. Afterwards, process these signals by using wavelet transform and wavelet packet transform, compare and analyze them in different working conditions. The results of the study indicate that through comparison between dry milling and electric hot milling, the latter can be more effectively milling tool steel, and improve the cutting tool durability.

FEM Analyzing Effect of Tool Body Materials on Security Reliability for Face-Milling Cutter

2013 ◽  
Vol 797 ◽  
pp. 161-165
Author(s):  
Lu Ning Liu ◽  
Zhen Yu Shi ◽  
Zhan Qiang Liu
Keyword(s):  
Cutting Tool ◽  
Rotation Speed ◽  
Face Milling ◽  
Al Alloys ◽  
Cutting Condition ◽  
Tool Steels ◽  
Milling Cutter ◽  
Important Indicator ◽  
Milling Operation ◽  
Wide Range

Face milling is the most common milling operation and can be performed using a wide range of different tools. Tool life is an important indicator of the milling operation in manufacturing process. In high speed machining, there are two forms of security lapse including cutter body rupture and flying out to effect face-milling cutter life. This study investigates the influence of cutting tool body material on the distribution of stress field by utilizing finite element simulations (FEM). Two kind of cutting tool body materials including Al alloys and 40CrMo tool steels were used for simulation. The cutting tool was set to be idling under different rotation speed including 5000r/min, 10000r/min, 15000r/min, 20000r/min and 30000r/min, respectively. Results show that for the two kinds of materials, the security cutting speed is 15000r/min to Al alloys and 20000r/min to 40CrMo tool steels respectively. Under the same cutting condition, 40CrMo tool steels have higher shear stress than that of Al alloys, in hence they have higher security rotation speed.

Elimination of the Interference Surface when a Double Circular Gear is Generated by a Milling Cutter

2011 ◽  
Vol 204-210 ◽  
pp. 1109-1115
Author(s):  
Hu Ran Liu
Keyword(s):  
Cutting Tool ◽  
Grinding Process ◽  
Milling Cutter

This paper re-defined the concept of conjugate axis and presented the application of this concept. Based on the research mentioned before, this paper studied the interference surface generated by the milling cutter, when a double circular gear is generated by a milling cutting tool. We fined a way to eliminate such the interference surface by the help of conjugate axis. The research of this paper gives the concept of conjugate axis the new function. The method presented in this paper is very useful for the grinding process of the hardened double circular gears.

Contributions to the Study of Generation of the Flanks of the Generating Hook of Cylindrical Curved Gear in Oblong Cycloidal Arc

2003 ◽  
Author(s):  
Iulian Sta˘na˘s¸el ◽  
Ioan Mihaila ◽  
Adrian Ghionea
Keyword(s):  
Reference System ◽  
Analytical Study ◽  
Cutting Tool ◽  
Reference Plane ◽  
Milling Cutter ◽  
Correlated Motions ◽  
Tooth Gear

The paper has proposed to determine the equation of flanks of generation hook with oblong cycloidal arc taking into account two types of cutting tool: a cutting tool that generates the hole of the tooth, respectively a cutting tool that generates the tooth. The curved cylindrical teeth with cycloidal flanks is generated by rolling with straight mobile line and continuous division by using a milling cutter with 1, 2, 3, 4 or 5 groups of knifes equidistantly placed, fixed on an adaptable device on a Phauter toothing machine. The two curves which defines the flank are simultaneously generated by correlated motions. In order to make the analytical study of motions and geometry of the flanks, several 3D coordinating systems were first defined, each of them being bounded by an element that participates in the generating process. There were established the equations of cutting edged of the tool in Ss system, the equations of the flanks of the generating hook are obtained by changing the reference system of edges of the tool from Ss to SCG. The line of the flanks is studied in the reference plane and in parallel plans with this, and. the profile of the flanks is determined in perpendicular plans on the workpiece axis. . It was made a calculation program in MATLAB, that allowed to obtain data, which were used to plot the line and the profile of the flanks of the generating hook. By analysing the obtained shape they result conclusions used for the manufacturing of the involute-tooth gear with curved oblong cycloidal arc.

scholarly journals New Support Roller Profile Design for Railway Wheel Re-profiling Process by Under-floor Lathes With a Single Cutting Tool

2021 ◽  
Author(s):  
Eduardo Corral ◽  
Jesús Meneses ◽  
M.J. Gómez García ◽  
Cristina Castejón ◽  
Juan Carlos García-Prada
Keyword(s):  
Cutting Tool ◽  
Impact Damage ◽  
The Finite Element Method ◽  
Railway Wheel ◽  
Process Simulations ◽  
Support Roller ◽  
Time Savings ◽  
Profile Design ◽  
Roller Profile ◽  
The Impact

Abstract The wheel re-profiling is an important part of railway wheelset maintenance. Researchers and railway operators have been very concerned about how to minimize the loss of time during wheel re-profiling without decreasing safety. Avoiding wheelset disassembly means considerable time savings, while reducing wheel damage during operation. Underfloor wheel lathes are the most appropriate tool to achieve this double objective, and therefore the most used nowadays.Multi-cut tool lathes have the disadvantage of being extremely expensive. On the other hand, with single tool lathes, re-profiling is not smooth or safe enough when current convex profile support rollers are used.In this article, a methodology to optimize the profile of the support rollers used in underfloor single tool lathes for railway wheel re-profiling is proposed. This novel profile design will minimize damage and increase the safety of such lathes, since it proposes a greater smoothness in the process. Simulations of re-profiling process have been carried out by the finite element method showing that the designed roller profile reduces drastically the impact/damage during the operation. Profile-optimized support rollers have been used in a real underfloor wheel lathe, showing good results.

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