Study on dressing tool of grinding wheel

2004 ◽  
Vol 2004.53 (0) ◽  
pp. 143-144
Author(s):  
Seiji Asai ◽  
Takashi Inoue
Keyword(s):  
Grinding Wheel ◽  
Dressing Tool

scholarly journals Indikator Proses Utama pada Proses Grinding dengan Pendekatan Manajemen Pengetahuan

2016 ◽  
Vol 13 (2) ◽  
pp. 743
Author(s):  
Ikhwan Arief ◽  
Alfajri Nalda
Keyword(s):  
Knowledge Management ◽  
Grinding Wheel ◽  
Management Approach ◽  
Grinding Process ◽  
Process Indicators ◽  
Dressing Tool ◽  
Key Indicators

This study discusses aboutkey process indicators in grinding with the knowledge management approach. Common/key indicators used in the machine are workpiece, grinding wheel, dressing tool and coolant. The resulting key processeswill benefit firms and their operators especially new ones in managing scienceson grinding process that will allow knowledge transferred to new operators quickly. Process indicators are described with IDEF0 diagrams which will define the inputs, outputs, mechanisms and controls.Keywords: Knowledge Management, Grinding, IDEF0AbstrakPenelitian ini membahas tentang indikator proses utama pada proses grinding/gerinda dengan pendekatan manajemen pengetahuan. Indikator umum yang dipakai yaitu mesin, benda kerja, grinding wheel, dressing tool dan coolant. Hasil ini akan bermanfaat untuk membantu perusahaan dalam mengelola ilmu pengetahuan pada proses grinding sehingga akan memudahkan pewarisan ilmu pengetahuan kepada operator baru dari operator senior. Indikator proses digambarkan dengan IDEF0 yang memperlihatkan masukan, luaran, mekanisme dan kontrol pada proses.Kata kunci: Manajemen Pengetahuan, Grinding, IDEF0

Optimization and Application of Laser-Dressed cBN Grinding Wheels

2016 ◽  
Vol 1136 ◽  
pp. 90-96 ◽  
Author(s):  
Ali Zahedi ◽  
Bahman Azarhoushang ◽  
Javad Akbari
Keyword(s):  
Environmental Concerns ◽  
Grinding Wheel ◽  
Grinding Process ◽  
Grinding Wheels ◽  
Average Roughness ◽  
Cylindrical Grinding ◽  
Laser Dressing ◽  
Dressing Tool ◽  
Cbn Grinding Wheel ◽  
Spindle Power

Laser-dressing has been shown to be a promising method for overcoming some shortcomings of the conventional methods such as high wear of the dressing tool and its environmental concerns, high induced damage to the grinding wheel, low form flexibility and low speed. In this study, a resin bonded cBN grinding wheel has been dressed with a picosecond Yb:YAG laser. The efficiency of the laser-dressed grinding wheels has been compared with the conventionally dressed and sharpened grinding wheels through execution of cylindrical grinding tests on a steel workpiece (100Cr6). The conventional dressing and sharpening processes have been performed by using a vitrified SiC wheel and vitrified alumina blocks, respectively. By recording the spindle power values along with the surface topography measurements of the ground workpieces and the extraction of two roughness parameters (the average roughness Ra and the average roughness depth Rz), it is possible to provide an assessment of the cylindrical grinding process with different dressing conditions i.e. laser-dressing and conventional dressing. Accordingly, a strategy will be proposed to optimize the cylindrical grinding process with laser-dressed wheels regarding the forces and roughness values.

Wear of Diamond Grinding Wheel during Low Speed Dressing by Alumina

2015 ◽  
Vol 658 ◽  
pp. 120-124
Author(s):  
Tachai Luangvaranunt ◽  
Natthawat Tangkaratanakul ◽  
Patchanok Sakultantimetha
Keyword(s):  
High Hardness ◽  
Large Mass ◽  
Diamond Wheel ◽  
Grinding Wheel ◽  
Work Piece ◽  
Wheel Wear ◽  
Diamond Grinding Wheel ◽  
Diamond Grinding ◽  
Dressing Tool ◽  
Pin On Disk

Diamond grinding wheel is used in high precision grinding process, when work piece has a very high hardness. For a specific grinding interval, the wheel must be properly dressed, in order to remove swarf, sharpen the worn diamond grits, open up new diamond protrusions, and recondition the bond material. Dressing of diamond grinding wheel by alumina dressing tool has been simulated in a pin-on-disk machine in the research. Sharpening of the wheel is indicated by the increase of its roughness value, and surface microstructure with protruding sharp diamond grits. It was found that increasing of sliding distant from 100 to 500 m will increase the roughness of the wheel. The increase of contact load from 10 to 20 N will also increase roughness of the wheel, and the severity of wheel wear, indicated by high values of friction coefficient. A proper dressing of this nickel bonded SD1200 diamond wheel is by sliding against alumina dressing tool for at least 300 m under 10 N load. Sliding velocity has minimal effect to the results. A too large sliding distant and load will cause severe damage to wheel surface, and severe wheel wear, indicated by its large mass loss.

scholarly journals Process Related Characteristic-Based Topography Evaluation of Wear Conditions On Grinding Wheels

2021 ◽  
Author(s):  
Maikel Strug ◽  
Berend Denkena ◽  
Bernd Breidenstein ◽  
Alexander Krödel-Worbes
Keyword(s):  
Evaluation Method ◽  
Process Efficiency ◽  
Grinding Wheel ◽  
The Novel ◽  
Grinding Wheels ◽  
Dressing Tool ◽  
Grinding Tool ◽  
Grinding Machine ◽  
Related Characteristic ◽  
Milling Tools

Abstract Non-productive auxiliary processes affect the single part and small badge production of milling tools. The key production process grinding is inevitably linked to the auxiliary conditioning process. The time demand of those process steps decreases the overall productivity of the manufacturing process. However, today the machine operator decides on conditioning cycles individually by the use of experience. Until today, there is no objective data based approach available that supports the initiation of these conditioning processes or the adaption of the grinding process itself in order to improve its process efficiency. For this purpose, a process related topography evaluation method of the grinding wheel surface is developed within this study. For the measurement an optical method based on laser triangulation is used. The measurement system is implemented into a common tool grinding machine tool. In addition, characteristic topography values are defined that show the wear conditions of the grinding tool. Moreover, the data is summarized in a database of wear conditions. The developed measurement method can save grinding and dressing tool resources, process times and minimizes scrap parts. In addition, an adaptation of the process and a targeted launch of auxiliary processes can be enabled. The novel characteristic-based topography measurement creates the opportunity to enhance the tool life of the grinding wheels up to 30 % without losing productivity.

scholarly journals Tool Condition Monitoring in Grinding Operation Using Piezoelectric Impedance and Wavelet Transform

Proceedings ◽  
2019 ◽  
Vol 42 (1) ◽  
pp. 10
Author(s):  
Pedro Oliveira Junior ◽  
Paulo Aguiar ◽  
Rodrigo Ruzzi ◽  
Salvatore Conte ◽  
Martin Viera ◽  
...  
Keyword(s):  
Wavelet Transform ◽  
Condition Monitoring ◽  
Single Point ◽  
Tool Condition Monitoring ◽  
Grinding Wheel ◽  
Discrete Wavelet ◽  
Electromechanical Impedance ◽  
Tool Condition ◽  
Dressing Tool ◽  
Piezoelectric Impedance

The purpose of the present study is to monitor tool condition in a grinding operation through the electromechanical impedance (EMI) using wavelet analysis. To achieve this, a dressing experiment was conducted on an industrial aluminum oxide grinding wheel by fixing a stationary single-point diamond tool. The proposed approach was verified experimentally at various dressing tool conditions. The signals obtained from an EMI data acquisition system, composed of a piezoelectric diaphragm transducer attached to the tool holder, were processed using discrete wavelet transform. The approximation and detail coefficients obtained from wavelet decomposition were used to estimate tool condition using the correlation coefficient deviation metric (CCDM). The results show excellent performance in tool condition monitoring by the proposed technique, which effectively contributes to modern machine tool automation.

A Quick-Test Method to Determine the Grinding Wheel Topography Based on Acoustic Emission

2011 ◽  
Vol 325 ◽  
pp. 282-286 ◽  
Author(s):  
Walter Lindolfo Weingaertner ◽  
Adriano Boaron
Keyword(s):  
Acoustic Emission ◽  
Test Method ◽  
Grinding Wheel ◽  
Signal Acquisition ◽  
Quick Test ◽  
Dressing Tool ◽  
Wheel Topography ◽  
Grinding Wheel Topography ◽  
Grinding Machine ◽  
Cbn Grinding Wheel

A quick-test method for the determination of the topographic characteristics of a CBN grinding wheel is developed based on acoustic emission technology. For implementing the strategy, an acoustic emission (AE) monitoring system was integrated into a 3 axis CNC grinding machine. A computer with specific software allows the signal acquisition and visualization of the AERMS signals, which are originated through interferences between the grinding wheel and dressing tool in a range of a few micrometers. The acquired AERMS signals from these interferences are used in order to establish an on-line map from the grinding wheel periphery, indicating the active cutting grains during the contact amid grinding wheel and dressing tool. The implementation of such activity supported by AE has led to satisfactory results regarding the required time to evaluate the strategy as well as the verified correlation with different grinding topographies caused by changes in the dressing parameters.

Mirror Grinding Process Parameter Selection and Design

2014 ◽  
Vol 670-671 ◽  
pp. 526-528
Author(s):  
Li Hua ◽  
Xiang Jun Wang ◽  
Rui Zhou
Keyword(s):  
Grinding Wheel ◽  
Grinding Process ◽  
Grinding Wheels ◽  
Experimental Conditions ◽  
Dressing Tool ◽  
Resin Binder ◽  
Tool Cutting ◽  
The Impact ◽  
Mirror Grinding ◽  
Work Table

Mirror grinding mainly depends on the precision of the machine tool, cutting and grinding amount and wheel selection and dressing. This paper mainly studies the MG1432 high-precision universal cylindrical grinder, exploring the impact on the workpiece roughness through selection and design of various process parameters in grinding, such as changing work table speed in dressing the grinding wheel and grinding, workpiece linear velocity and excessive feeding. The experimental conditions were: Using resin binder white corundum graphite grinding wheels, workpiece: GCr15 (HRC60); dressing tool: sharp single particle diamond correction pen, and ultimately achieving mirror grinding process results.

Investigations on Laser Dressing of Grinding Wheels—Part I: Preliminary Study

1989 ◽  
Vol 111 (3) ◽  
pp. 244-252 ◽  
Author(s):  
N. Ramesh Babu ◽  
V. Radhakrishnan ◽  
Y. V. G. S. Murti
Keyword(s):  
Mechanical Properties ◽  
Laser Pulses ◽  
Grinding Wheel ◽  
Thermal And Mechanical Properties ◽  
Grinding Wheels ◽  
Wheel Surface ◽  
Laser Dressing ◽  
Dressing Tool ◽  
Vitrified Bond ◽  
Preliminary Study

Investigations on the use of laser as a dressing tool for grinding wheels have been carried out and the results are reported in a two paper sequence. This paper reports the results of preliminary investigations on grinding wheel materials after laser irradiation. Studies were carried out on the surfaces of aluminum oxide (Al2O3), and silicon carbide (SiC) grains, vitrified bond and also on a sample Al2O3 grinding wheel after irradiating them with high intensity Nd:YAG laser pulses. The results obtained are discussed with reference to the optical, thermal, and mechanical properties of the materials. This paper also includes the studies on the wheel surface topography obtained after laser dressing the wheel with different dressing feed rates.

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