An Investigation on Manufacturing of the Straight Bevel Gear Using End Mill by CNC Milling Machine

2005 ◽  
Vol 127 (3) ◽  
pp. 503-511 ◽  
Author(s):  
Cihan O¨zel ◽  
Ali I˙nan ◽  
Latif O¨zler
Keyword(s):  
Measurement Data ◽  
Bevel Gear ◽  
Milling Machine ◽  
Cnc Milling ◽  
Bevel Gears ◽  
Straight Bevel Gear ◽  
Cnc Milling Machine ◽  
Machining Center ◽  
Gear Manufacturing ◽  
End Mills

Accurate manufacturing of bevel gears is an important problem for small workshops because the module milling cutters used for manufacturing are not accurate enough for the task. In this study, manufacturing of straight bevel gears is investigated by using end mills in CNC milling with a vertical machining center. By using this method, use of auxiliary apparatus, special cutters (such as the circular cutter, the rack cutter, etc.), and special machine tools are not required. For the study, first the straight bevel gear was modeled by Tredgold’s approach and manufacturing equations of the straight bevel gear were obtained. For the straight bevel gear manufacturing, a macro program was prepared and used. Afterward, the straight bevel gear was manufactured by using this program in a CNC milling machine, the Dyna 2900 machine. The results of the measurement data for a single tooth on the gear manufactured and the theoretical values are presented and discussed.

Accuracy of Straight Bevel Gear by End Mill Using CNC Milling Machine

2007 ◽  
Author(s):  
Kazumasa Kawasaki ◽  
Kazuyoshi Shinma
Keyword(s):  
Bevel Gear ◽  
Milling Machine ◽  
Cnc Milling ◽  
End Mill ◽  
Coordinate Measurement ◽  
Straight Bevel Gear ◽  
Cnc Milling Machine ◽  
Measuring Machine ◽  
Crown Gear ◽  
Gear Accuracy

Straight bevel gears are usually manufactured with various machines and systems, and the tooth profiles are produced by grinding or machining by means of a tool with many cutting edges. In recent years, the straight bevel gear has been manufactured by an end mill using a CNC milling machine because the use of the auxiliary apparatus, special cutters, and special machine tools are not needed. Using this method, the gear manufacturing with high accuracy is important problem. In this paper, the coordinate measurement of the straight bevel gear manufactured in this method is performed and the gear accuracy is evaluated. The tooth profiles of a straight bevel gear generated by a quasicomplementary crown gear instead of a conventional complementary crown gear is introduced. For this study, first the tooth profiles of the straight bevel gear were modeled using a 3D-CAD system and the gear was manufactured by an end mill using a CNC milling machine based on a CAM process. Afterward, the coordinates of many points on the gear tooth surfaces were measured at random using a coordinate measuring machine. This coordinate measurement provides the information about the factors relation to the gear accuracy such as pressure angle, tooth angle error, root cone angle, and apex to back and so on. Therefore, the values of the above factors were estimated and were compared with the theoretical ones, respectively.

Accuracy Measurement and Evaluation of Straight Bevel Gear Manufactured by End Mill Using CNC Milling Machine

2008 ◽  
Vol 131 (1) ◽  
Author(s):  
Kazumasa Kawasaki ◽  
Kazuyoshi Shinma
Keyword(s):  
Bevel Gear ◽  
Milling Machine ◽  
Cnc Milling ◽  
End Mill ◽  
Coordinate Measurement ◽  
Straight Bevel Gear ◽  
Cnc Milling Machine ◽  
Computer Aided ◽  
Crown Gear ◽  
Gear Accuracy

Straight bevel gears are usually manufactured with various machines and systems, and the tooth profiles are produced by grinding or machining by means of a tool with many cutting edges. In recent years, the straight bevel gear has been manufactured by an end mill using a computer numerical control (CNC) milling machine because the use of the auxiliary apparatus, special cutters, and special machine tools is not needed. Using this method, the gear manufacturing with high accuracy is an important problem. In this paper, the coordinate measurement of the straight bevel gear manufactured in this method is performed and the gear accuracy is evaluated. The tooth profiles of the straight bevel gear generated by a quasi-complementary crown gear instead of a conventional complementary crown gear are introduced. For this study, the tooth profiles of the straight bevel gear were modeled using a 3D computer-aided design system and the gear was manufactured by an end mill using a CNC milling machine based on a computer-aided manufacturing process. Afterward, the coordinates of many points on the gear tooth surfaces were measured at random using a coordinate measuring machine. This coordinate measurement provides the information about the factors related to the gear accuracy such as pressure angle, tooth angle error, workpiece setting angle, apex to back, and so on. Therefore, the values of the above factors were estimated and were compared with the theoretical ones, respectively.

Designing and Manufacturing Spiral Bevel Gears Using 5-Axis CNC Milling Machines

2011 ◽  
Author(s):  
Joe¨l Teixeira Alves ◽  
Miche`le Guingand ◽  
Jean-Pierre de Vaujany
Keyword(s):  
Manufacturing Process ◽  
Gear Tooth ◽  
Bevel Gear ◽  
Spiral Bevel Gear ◽  
Milling Machine ◽  
Cnc Milling ◽  
Spiral Bevel Gears ◽  
Bevel Gears ◽  
Tooth Surfaces ◽  
Spiral Bevel

The design of spiral bevel gears still remains complex since tooth geometry and the resulting kinematics performance stem directly from the manufacturing process. Spiral bevel gear manufacture owes most to the works of Gleason and Klingelnberg. However, recent advances in milling machine technology and CAM (Computer Aided Manufacturing) make it possible to manufacture good quality spiral bevel gears on a standard 5-axis milling machine. This paper describes the CAD definition and manufacturing of spiral bevel gear tooth surfaces. Process performance is assessed by comparing the resulting surfaces after machining with the pre-defined CAD surfaces. Using this manufacturing process allows to propose new type of geometry. This one is more theoretical and, in some respects, easier to design than the standard spiral bevel gear as it enables simpler mesh optimization. The latter can be achieved by using the model of meshing under load recalled in this paper.

Application of Taguchi and Response Surface Methodologies for Surface Roughness in Rotary Tool Polishing Hardness Mould Steels

2011 ◽  
Vol 87 ◽  
pp. 82-89
Author(s):  
Potejanasak Potejana ◽  
Chakthong Thongchattu
Keyword(s):  
Surface Roughness ◽  
Response Surface ◽  
Laser Scanning ◽  
Cutting Speed ◽  
Optimal Level ◽  
Confocal Laser ◽  
Milling Machine ◽  
Cnc Milling ◽  
Polishing Process ◽  
Cnc Milling Machine

This research proposes a new application of 3-axis CNC milling machine for polishing the 60 HRC hardness steels. The rotary polishing tools are designed by refer to the end-mill ball nose’s design. The diamond powder are coated in rotary polishing tools by resinoid bonding method and concentrated in 4.4 karat/cm2. The Zig-milling tool paths are used to polish the hardness steel. After polishing, the confocal laser scanning microscope is used to analyze the arithmetic mean surface roughness of the hardness steels. The L12 orthogonal array of the Taguchi’s method is selected to conduct the matrix experiment to determine the optimal polishing process parameters. The diamond grit size and cutting speed of the rotary polishing tools, feed rate and step over of the tool path, the depth of polishing process penetration, and polishing time are used to study. The combination of the optimal level for each factor of the hardness steel polishing process are used to study again in the confirmation experiment. The predicted signal to noise ratio of smaller - the better under optimal condition are calculated by using the data from the experiment. The combination of the optimal level for each factor are used to study again in the confirmation experiment and the result show that polishing time was a dominant parameter for the surface roughness and the next was depth of penetration. The response surface design is then used to build the relationship between the input parameters and output responses. The experimental results show that the integrated approach does indeed find the optimal parameters that result in very good output responses in the rotary polishing tools polished hardness mould steel using CNC milling machine. The mean surface roughness of hardness steel polishing process is improved by the diamond rotary tools with the 3-axis CNC milling machine.

scholarly journals Optimizing the Grinding Parameters on the CNC Milling Machine for Best Glass Edge Quality

2021 ◽  
Vol 1885 (3) ◽  
pp. 032069
Author(s):  
Xiaoyu Li ◽  
Minbo Wang ◽  
Liangbao Jiang ◽  
Jiaxi Liu ◽  
Jiaming Li ◽  
...  
Keyword(s):  
Milling Machine ◽  
Cnc Milling ◽  
Cnc Milling Machine ◽  
Grinding Parameters ◽  
Edge Quality ◽  
Glass Edge

scholarly journals Development of CNC Milling Machine for Small Scale Industry

2021 ◽  
Vol 1068 (1) ◽  
pp. 012017
Author(s):  
Wasis Nugroho ◽  
Damhuji Rifai ◽  
Aminul Hakim Embong ◽  
Kamarul Adnan Abd Aziz ◽  
Ahmad Siraji Embong ◽  
...  
Keyword(s):  
Small Scale ◽  
Milling Machine ◽  
Cnc Milling ◽  
Cnc Milling Machine ◽  
Small Scale Industry
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