New cutter design for finishing insulators

1964 ◽  
Vol 21 (11) ◽  
pp. 665-665
Author(s):  
V. M. Tikhomirov
Keyword(s):  
Cutter Design

The Milling Cutter Design and Simulation for Complex Cavity Machining

2014 ◽  
Vol 800-801 ◽  
pp. 465-469
Author(s):  
An Shan Zhang ◽  
Xian Li Liu ◽  
Shu Cai Yang ◽  
Qi Zhang
Keyword(s):  
End Milling ◽  
Cutting Speed ◽  
End Mill ◽  
Ball End Mill ◽  
Flat Bottom ◽  
Good Surface ◽  
Complex Cavity ◽  
Cutter Design ◽  
Bottom Width ◽  
Curvature Interference

Complex cavity generally is machined in 3 axis or 3+2 axis machine tools, it has large amount of metal to be removed. For complex cavity machining, the cutting speed of ball end mill`s head point is zero, which makes its end milling ability poor; Torus cutter `s flat bottom width is wide, which causes curvature interference and concave-uncut. So this article designs a new kind of cutter for complex cavity roughing and semi-finishing, which can improve ball end mill`s poor end milling ability and decrease flat-end width. The simulation results show that the new cutter`s feasibility of machining complex cavity is better, and it can obviously reduce the amount of owe cutting compared with the torus cutter; At the same time, the new cutter can improve machining efficiency by 32.4% compared with the ball end mill, and good surface can also be generated.

Variable Helix Cutter Design to Suppress Regenerative Effect

2019 ◽  
Author(s):  
Norikazu Suzuki ◽  
Rikiya Ishiguro ◽  
Tomoki Morita ◽  
Eiji Shamoto
Keyword(s):  
Design Methodology ◽  
Design Method ◽  
Simultaneous Optimization ◽  
Axial Position ◽  
Depth Of Cut ◽  
Chatter Vibration ◽  
Major Mechanism ◽  
Variable Helix ◽  
Cutter Design ◽  
Regeneration Factor

Abstract Regeneration is a major mechanism to generate self-excited chatter vibration in cutting. Variable helix cutters are useful to suppress regeneration. Although simultaneous optimization of pitch/helix angles is significantly important, there is no practical design methodology to optimize the variable helix cutter geometry so far. In order to attain robust regeneration suppression, a new design method of variable helix cutters is proposed in the present study. The pitch angles vary along axial position due to disagreement of the helix angles. Because of this nature, regeneration can be suppressed in a robust manner with respect to changes of chatter frequency and/or spindle speed. The proposed design satisfies robustness against axial depth of cut variations. Optimal pitch/helix angles are formulated on the basis of distinctive relationship between the cutter geometry and “Regeneration Factor (RF)”, which is an index to quantify influence of regeneration in the process. Through analytical investigations, it is confirmed that regeneration can be suppressed effectively by the proposed method, resulting in significant chatter stability increase. Low immersion milling experiment verified significant stability and robustness of the proposed variable helix design.

Grinding Cutter Design of Involute Straight Bevel Gear Based on Central Projection Method

2011 ◽  
Vol 271-273 ◽  
pp. 939-944 ◽  
Author(s):  
Guo Xing Zhang ◽  
Zhi Yong Hu ◽  
Shao Hua Qian ◽  
Zhi De Wang ◽  
Yong Zhi Gong
Keyword(s):  
Simulation Model ◽  
Projection Method ◽  
Mechanical Design ◽  
Tooth Profile ◽  
Bevel Gear ◽  
Central Projection ◽  
Straight Bevel Gear ◽  
Mapping Software ◽  
Cutter Design ◽  
Model Database

In order to establish precise grinding cutter model of straight bevel gear, this study projects the spherical involute that forms tooth profile of bevel gear into the involute of circle approximately, and makes a simulation model database of bevel gear according to the principle of mechanical design on the basis of CAD mapping software. With the central projection method, processing devices and cutters of involute straight bevel gear can also be designed which has no concern with modulus. The results show that the establishment of simulation database and processing cutters can greatly facilitate the design and processing of straight bevel gear, greatly reduce the design and finishing costs, and is also helpful to teaching training of gear.

Power Skiving Process for Cylindrical Gears Manufacturing

2015 ◽  
Vol 799-800 ◽  
pp. 382-387 ◽  
Author(s):  
Er Kuo Guo ◽  
Rong Jing Hong ◽  
Xiao Diao Huang ◽  
Cheng Gang Fang
Keyword(s):  
Kinematic Model ◽  
Cylindrical Gear ◽  
Power Skiving ◽  
Proposed Model ◽  
Relief Angle ◽  
Process Reliability ◽  
Cutter Design ◽  
Fundamental Research ◽  
Mathematical Equations ◽  
Important Basis

Latest research clearly demonstrates the excellent capability of the gear power skiving technology. For further improvement of the skiving process and enhancement of the process reliability the fundamental research on the cutting mechanism of cylindrical gear power skiving was conducted. First the kinematic model of power skiving and mathematical equations of cutter were established according to the engagement principle of crossed helical gears. Then, based on the proposed model, we investigated the simulation process, chip deformation mechanism and the cutter top relief angle. The results support the skiving cutter design and process optimization and are an important basis for the implementation of the advanced gear process.

Layer Face Milling Cutter Parametric Modeling and Modal Analysis

2010 ◽  
Vol 102-104 ◽  
pp. 605-609 ◽  
Author(s):  
Sheng Yuan Ji ◽  
Xian Li Liu ◽  
Fu Gang Yan ◽  
Cai Xu Yue ◽  
Xing Fa Zhao
Keyword(s):  
Modal Analysis ◽  
Parametric Design ◽  
Design Method ◽  
Face Milling ◽  
Parametric Modeling ◽  
Milling Cutter ◽  
Study Results ◽  
The Face ◽  
Cutter Design ◽  
Important Significance

Performance-based parametric design method for improving the face milling cutter design efficiency and ensuring the use of performance has an important significance. Three kinds of parameter design method are described in this paper, and parametric design of series of layer milling cutter is completed by modeling parametric design method with UG software. Also, modal analysis is made with FEM. Therefore the study results provide examples for optimization of tool structural and analysis of restrain vibration.

Axiomatic Design of High Speed Milling Cutter and Fuzzy Object Element Evaluation for Dynamic Cutting Performance

2009 ◽  
Vol 626-627 ◽  
pp. 59-64
Author(s):  
Bin Jiang ◽  
Ling Jiang ◽  
Min Li Zheng ◽  
J. Zhou
Keyword(s):  
High Speed ◽  
Design Method ◽  
Axiomatic Design ◽  
Cutting Performance ◽  
Design Matrix ◽  
Design Requirement ◽  
Milling Cutter ◽  
High Speed Milling ◽  
Function Decomposition ◽  
Cutter Design

According to the theory of axiomatic design, to process function decomposition and grey cluster analysis of high speed milling cutter with indexable inserts, found the design matrix of cutter, and propose the design method of cutter based on high speed milling safety, stability and efficiency. High speed face milling cutter for machining aluminum alloy was developed according to design method and design matrix of cutter, experiment and fuzzy object element evaluation for cutting performance of cutter was accomplished. Results showed that there was not design loop which existed in the development of cutter, design process was simplified effectively, cutting energy of high speed milling cutter using axiomatic design method was dispersed, it held higher safety, cutting stability and efficiency, comprehensive cutting performance met the design requirement of high speed milling cutter.

scholarly journals Numerical modeling on drilling fluid and cutter design effect on drilling bit cutter thermal wear and breakdown

2019 ◽  
Vol 10 (3) ◽  
pp. 959-968
Author(s):  
Ahmad Zhafran Ayop ◽  
Ahmad Zafri Bahruddin ◽  
Belladonna Maulianda ◽  
Aruvin Prakasan ◽  
Shamammet Dovletov ◽  
...  
Keyword(s):  
Drilling Fluid ◽  
Polycrystalline Diamond ◽  
Poor Performance ◽  
Drilling Fluids ◽  
Drill Bit ◽  
Thermal Wear ◽  
Cutter Design ◽  
Low Performance ◽  
Geological Complexity ◽  
Drilling Bit

Abstract The unconventional reservoir geological complexity will reduce the drilling bit performance. The drill bit poor performance was the reduction in rate of penetration (ROP) due to bit balling and worn cutter and downhole vibrations that led to polycrystalline diamond compact (PDC) cutter to break prematurely. These poor performances were caused by drilling the transitional formations (interbedded formations) that could create huge imbalance of forces, causing downhole vibration which led to PDC cutter breakage and thermal wear. These consequently caused worn cutter which lowered the ROP. This low performance required necessary improvements in drill bit cutter design. This research investigates thermal–mechanical wear of three specific PDC cutters: standard chamfered, ax, and stinger on the application of heat flux and cooling effect by different drilling fluids by using FEM. Based on simulation results, the best combination to be used was chamfered cutter geometry with OBM or stinger cutter geometry with SBM. Modeling studies require experimental validation of the results.

MILLING EFFECTIVENESS INCREASE BY MEANS OF HARD-ALLOY COMPOUND END MILLING CUTTERS

2021 ◽  
Vol 2021 (6) ◽  
pp. 4-10
Author(s):  
Bori Mokrickiy ◽  
Anna Morozova ◽  
Vladislav Vereschagin
Keyword(s):  
Hard Alloy ◽  
Structural Steel ◽  
Cost Reduction ◽  
Lower Cost ◽  
End Milling ◽  
Design Development ◽  
Product Cost ◽  
Milling Cutter ◽  
Alloy Compound ◽  
Cutter Design

The investigation purpose: the effectiveness increase of hard-alloy end milling cutters at the expense of new milling cutter design development conventionally called compound milling cutters. The problem solved during investigation: the reveal of the most efficient fields of compound milling cutter use. The scientific novelty of the work: the formation of a new kind of hard-alloy end milling cutter design, to avoid milling cutter destruction in the place of shank end mounting in the chuck of the machine a shank end is made of structural steel and soldered with a hard-alloy cutting part of the milling cutter. As a result of the investigation it was defined: a) compound milling cutters compete with monolithic milling cutters in accuracy during billet production of parts at a lower cost of milling cutters; b) a compound milling cutter with a diameter of 16 mm and a milling cutter length of 92 mm substitute successfully a monolithic milling cutter by production accuracy and ensures cost reduction of a product by 4%; c) a compound milling cutter with a length of 220 mm as compared with a monolithic milling cutter ensures product cost reduction by 38% and applicable for general aims at engineering enterprises.

Solution of the Structural Optimization Problem of a Multiagent Approach Based Cutter Design

2019 ◽  
Vol 22 (1) ◽  
pp. 53-59
Author(s):  
Valerii Anosov ◽  
◽  
Lina Bohdanova ◽  
Volodymyr Kolodiazhnyi ◽  
Vadym Litovka ◽  
...  
Keyword(s):  
Structural Optimization ◽  
Optimization Problem ◽  
Cutter Design ◽  
Structural Optimization Problem
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