On the performance of a novel dressing tool with controlled geometry and density of abrasive grits

CIRP Annals ◽  
2017 ◽  
Vol 66 (1) ◽  
pp. 337-340 ◽  
Author(s):  
Alessio Spampinato ◽  
Dragos Axinte ◽  
Paul Butler-Smith ◽  
Donka Novovic
Keyword(s):  
Dressing Tool

Dressing Technology on the Diamond Abrasive Grinding Wheels Using the Rotary Diamond Dresser

2009 ◽  
Vol 416 ◽  
pp. 234-237
Author(s):  
Zhong Ming Cui ◽  
Peng Hui Deng ◽  
Lei Du
Keyword(s):  
Single Point ◽  
Grinding Wheels ◽  
Dressing Method ◽  
Diamond Tools ◽  
Diamond Grinding ◽  
Dressing Tool ◽  
Dressing Force ◽  
Diamond Abrasive ◽  
Better Than

The dressing processes are conducted on the diamond grinding wheels using the rotary diamond tools and compared between the single point diamond dresser and the rotary diamond dressing tool in the following aspects, including the dressing force, tool wearing, dressing efficiency. The result shows that, the dressing performance of the rotary diamond tools is remarkable better than that of the conventional dressing method.

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

Influence of Dressing Tool Specification on Dressing Tool Wear for Generating Gear Grinding

2016 ◽  
Vol 1140 ◽  
pp. 228-235
Author(s):  
Matthias Ophey ◽  
Christoph Löpenhaus ◽  
Fritz Klocke
Keyword(s):  
Tool Wear ◽  
Economic Efficiency ◽  
Grinding Process ◽  
Gear Grinding ◽  
Dressing Tool ◽  
Best Fitting ◽  
Efficiency And Productivity

One research objective for generating gear grinding is to increase economic efficiency and productivity of the process. Furthermore, the gear quality must be equal or higher compared to the non optimised process. In addition to the grinding process and the grinding tools, the dressing process can be suitable to lead to an increase of efficiency of generating gear grinding. Due to the variety of dressing tool specifications process users have the problem of selecting the best fitting dressing tool for their demands. Therefore, it is necessary to know the interactions of dressing tool specification and dressing tool wear. But the influence of the dressing tool specification onto dressing tool wear has yet not been sufficiently investigated for generating gear grinding.

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.

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

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 Design and Improving Vital Sign with Parameter Body Temperature (axilla) and Oxymetry for Patient Monitoring

2020 ◽  
Vol 2 (2) ◽  
pp. 58-64
Author(s):  
Mohamad Adam Firdaus ◽  
Andjar Pudji ◽  
Muhammad Ridha Mak'ruf
Keyword(s):  
Body Temperature ◽  
Oxygen Saturation ◽  
Vital Sign ◽  
Medical Service ◽  
Vital Signs ◽  
Measuring Instruments ◽  
Dressing Tool ◽  
Number Of Patients ◽  
Quality Of Patient Care

In most hospitals, nurses routinely calculate and document primary vital signs for all patients 2-3 times per day to get information on the patient's condition. Vital Sign Monitor is made for medical devices that can diagnose patients who need intensive care to determine patient needs. Some parameters used in patient renewal: Oxygen saturation (SPO2), and body temperature. This makes additional tasks very important to be evaluated for medical staff and equipment manufacturers. This evaluation is needed to get the real condition of the patient. With the large number of patients who need evaluation, it is not possible to see the condition of some medical workers who work. This medical service is expected to reduce the workload of nurses with doctors and improve the quality of patient care. The large demand for these devices, mostly in hospital intensive rooms, is the basis for researching the output of data from multiple vital sensor monitor monitors to obtain accurate and precise outputs. The output of the two sensors is processed by Arduino Mega2560 and requested on a 5 inch TFT LCD in the form of body temperature and oxygen saturation. Comparison of module results with standard measuring instruments calibrated to reference this module is used for accurate and precise results. According to the assessment and reversing tool data with the dressing tool, the highest error value is 1%. With a maximum permitted permission of 5%.

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