scholarly journals Effects of abrasive tools on surface finishing under brittle-ductile grinding regimes when manufacturing glass

2010 ◽  
Vol 210 (3) ◽  
pp. 466-473 ◽  
Author(s):  
I. Demirci ◽  
S. Mezghani ◽  
A. Mkaddem ◽  
M. El Mansori
Keyword(s):  
Surface Finishing ◽  
Ductile Grinding ◽  
Abrasive Tools

scholarly journals Flexible Abrasive Tools for the Deburring and Finishing of Holes in Superalloys

2018 ◽  
Vol 2 (4) ◽  
pp. 82 ◽  
Author(s):  
Adrián Rodríguez ◽  
Asier Fernández ◽  
Luís López de Lacalle ◽  
Leonardo Sastoque Pinilla
Keyword(s):  
High Surface ◽  
Value Added ◽  
Surface Finishing ◽  
Manufacturing Sectors ◽  
Complete Study ◽  
Roughness Analysis ◽  
Abrasive Tools ◽  
Edge Finishing ◽  
Finishing Processes ◽  
Machining Operations

Many manufacturing sectors require high surface finishing. After machining operations such as milling or drilling, undesirable burrs or insufficient edge finishing may be generated. For decades, many finishing processes have been on a handmade basis; this fact is accentuated when dealing with complex geometries especially for high value-added parts. In recent years, there has been a tendency towards trying to automate these kinds of processes as far as possible, with repeatability and time/money savings being the main purposes. Based on this idea, the aim of this work was to check new tools and strategies for finishing aeronautical parts, especially critical engine parts made from Inconel 718, a very ductile nickel alloy. Automating the edge finishing of chamfered holes is a complicated but very important goal. In this paper, flexible abrasive tools were used for this purpose. A complete study of different abrasive possibilities was carried out, mainly focusing on roughness analysis and the final edge results obtained.

Preparation Technology and Surface Finishing Characteristics Research of New Magnetic Abrasive Tools

2012 ◽  
Vol 522 ◽  
pp. 21-25
Author(s):  
Xiu Hong Li ◽  
Wen Hui Li ◽  
Sheng Qiang Yang
Keyword(s):  
Surface Finishing ◽  
Development Research ◽  
Abrasive Machining ◽  
Preparation Technology ◽  
Finishing Process ◽  
Abrasive Finishing ◽  
The Common ◽  
Abrasive Tools ◽  
The Mathematical Model ◽  
Preparation Techniques

According to the fact that the common machining medium used in magnetic abrasive finishing (magnetic abrasive) possessed disadvantages such as high preparation cost, easier to disperse in finishing process, and low utilization and repeat -utilization, this paper puts forward spherical magnetic abrasive of a certain size as magnetic abrasive machining medium, discusses the preparation techniques, establishes the mathematical model of finishing, and analyses the main performance parameter influencing finishing quality and finishing efficiency. Compared with magnetic grinding, spherical magnetic abrasive is not easy to disperse, can be re-used, having long service life and high finishing efficiency and quality. It is a magnetic finishing medium hasing development research value.

scholarly journals Flexible Abrasive Tools for Deburring and Finishing of Holes in Superalloys

2018 ◽  
Author(s):  
Adrián Rodríguez ◽  
Asier Fernández ◽  
Luís Norberto López de la Calle ◽  
Leonardo Sastoque Pinilla
Keyword(s):  
High Surface ◽  
Value Added ◽  
Surface Finishing ◽  
Manufacturing Sectors ◽  
Complete Study ◽  
Roughness Analysis ◽  
Abrasive Tools ◽  
Edge Finishing ◽  
Finishing Processes ◽  
Machining Operations

Many manufacturing sectors require high surface finishing. After machining operations such as milling or drilling, undesirable burrs or insufficient edge finishing may be generated. For decades, many finishing processes have been handmade-basis; this fact is accentuated when dealing with complex geometries especially for high value-added parts. In recent years, it’s a tendency of trying to automate as far as possible this kind of processes, repeatability and time/money savings are main purposes. Based on that idea, the aim of this work is to check new tools and strategies for finishing aeronautical parts, especially critical engine parts made on Inconel 718, a very ductile nickel alloy. Automating edge finishing of chamfered holes is a complicated but really important goal. In this paper, flexible abrasive tools were used for this purpose. A complete study of different abrasive possibilities was carried out, mainly focusing on roughness analysis and final edge results obtained.

Modeling Effects of Compliance in Coated Abrasive Tools

2011 ◽  
Vol 325 ◽  
pp. 257-263 ◽  
Author(s):  
Balasubramanian Nagarajan ◽  
Wei Jian Chee ◽  
Subbiah Sathyan
Keyword(s):  
Finite Element ◽  
Position Control ◽  
Element Model ◽  
Surface Finishing ◽  
Grinding Wheel ◽  
The Finite Element Method ◽  
Normal Forces ◽  
Machining Center ◽  
Abrasive Tools ◽  
The Finite Element Model

Coated abrasive tools are popularly used in the industry for surface finishing. An important characteristic of these tools is their compliance (a grinding wheel is rigid in comparison) which permits smaller amounts of material removal, conformance to curved surface shapes, and assistance in blending the finished surfaces with the unfinished surfaces. This important characteristic is modeled using the finite element method by capturing suitable properties of the coated abrasive tool and its backing pad. Surface finishing experiments are conducted on a flat work surface in a machining center under position control (as opposed to force control) and the area of polished contact is measured along with the normal forces (using a dynamometer). The finite element model results of contact area and forces are compared with that of the experiment. The usefulness of this modeling approach is demonstrated by extracting force per grain and application to curved surfaces.

Internal surface finishing

2018 ◽  
Author(s):  
JIANG GUO
Keyword(s):  
Internal Surface ◽  
Surface Finishing

This entry introduces five kinds of established internal surface finishing technologies.

Surface finishing of enamels by sol-gel coating

2006 ◽  
Vol 41 (1) ◽  
pp. 99-102 ◽  
Author(s):  
Marta Krzyzak ◽  
Günther Heinz Frischat ◽  
Peter Hellmold
Keyword(s):  
Sol Gel ◽  
Surface Finishing

scholarly journals Applications of Additively Manufactured Tools in Abrasive Machining—A Literature Review

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1318
Author(s):  
Mariusz Deja ◽  
Dawid Zieliński ◽  
Aini Zuhra Abdul Kadir ◽  
Siti Nur Humaira
Keyword(s):  
Rapid Tooling ◽  
Rapid Manufacturing ◽  
Abrasive Machining ◽  
Production Methods ◽  
Industrial Environment ◽  
Hard And Brittle Materials ◽  
3D Printed ◽  
Abrasive Tools ◽  
Machine Parts ◽  
Further Development

High requirements imposed by the competitive industrial environment determine the development directions of applied manufacturing methods. 3D printing technology, also known as additive manufacturing (AM), currently being one of the most dynamically developing production methods, is increasingly used in many different areas of industry. Nowadays, apart from the possibility of making prototypes of future products, AM is also used to produce fully functional machine parts, which is known as Rapid Manufacturing and also Rapid Tooling. Rapid Manufacturing refers to the ability of the software automation to rapidly accelerate the manufacturing process, while Rapid Tooling means that a tool is involved in order to accelerate the process. Abrasive processes are widely used in many industries, especially for machining hard and brittle materials such as advanced ceramics. This paper presents a review on advances and trends in contemporary abrasive machining related to the application of innovative 3D printed abrasive tools. Examples of abrasive tools made with the use of currently leading AM methods and their impact on the obtained machining results were indicated. The analyzed research works indicate the great potential and usefulness of the new constructions of the abrasive tools made by incremental technologies. Furthermore, the potential and limitations of currently used 3D printed abrasive tools, as well as the directions of their further development are indicated.

Random impact FEM simulation of irregularly-shaped media for parametric study of vibratory surface enhancement

2021 ◽  
pp. 095440542199012
Author(s):  
Jing Zhang ◽  
Joselito Yam Alcaraz ◽  
Swee-Hock Yeo ◽  
Arun Prasanth Nagalingam ◽  
Abhay Gopinath
Keyword(s):  
Residual Stress ◽  
Fatigue Life ◽  
Parametric Study ◽  
Thermal Loading ◽  
Low Cycle Fatigue ◽  
Fem Simulation ◽  
Surface Finishing ◽  
Aerospace Materials ◽  
Surface Enhancement ◽  
Steel Balls

Aerospace materials experience high levels of mechanical and thermal loading, high/low cycle fatigue, and damage from foreign objects during service, which can lead to premature retirement. Mechanical surface treatments of metallic components, for example, fan blades and blisks, are proven to improve fatigue life, improve wear resistance and avoid stress corrosion by introducing work hardening, compressive residual stresses of sub-surface, and surface finishing. Vibropeening can enhance aerospace materials’ fatigue life involving the kinetic agitation of hardened steel media in a vibratory finishing machine that induces compressive stresses into the component sub-layers while keeping a finished surface. Spherical steel balls are the most widely used shape among steel-based media and have been explored for decades. However, they are not always versatile, which cannot access deep grooves, sharp corners, and intricate profiles. Steel ballcones or satellites, when mixed with round steel balls and other steel media (diagonals, pins, eclipses, cones), works very well in such areas that ball-shaped media are unable to reach. However, a methodology of study the effect of irregularly-shaped media in surface enhancement processes has not been established. This paper proposes a finite element-based model to present a methodology for the parametric study of vibratory surface enhancement with irregularly-shaped media and investigates residual stress profiles within a treated area of an Inconel component. The methodology is discussed in detail, which involves a stochastic simulation of orientation, impact force, and impact location. The contrasting effects of a high aspect ratio, or an edge contact, as opposed to rounded and oblique contacts are demonstrated, with further analysis on the superposition of these effects. Finally, the simulation results are compared with actual residual stress measurements and was found to have a max percent difference of 34% up to 20 [Formula: see text]m below the media surface.

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