What is the effect of the increased friction on the bonding efficiency?

It could be expected that by increasing the rotation speed, the enhanced friction would produce more heat and always have a positive effect on bonding efficiency.

What is the common method of actuating the consumable rod?

Some authors adapted milling machines, by installing pneumatic or hydraulic rams underneath the backing plate, forcing the working piece against the rotating consumable rod with a constant pressure/force.

What is the first approach to controlling the axial load applied on the consumable rod?

Regarding the first approach, force/pressure control consists in keeping constant the axial load applied on the consumable rod during deposition.

What are the main concerns related to the modelling of FS?

There are several concerns related to the modelling of FS, namely: FS process modelling does not allow geometric simplification by symmetry,because it deals with asymmetric material flow around the consumable rod.

What was the method of deposition of aluminium over mild steel?

Deposition of aluminium over mild steel was achieved for high contact pressures, although the coatings presented poor adhesion and integrity.

What was the effect of the ratio between the feed rate of the consumable and the travel speed?

It was also observed that higher ratios between the feed rate of the consumable and the travel speed resulted in superior bonding quality, as well as, lower to intermediate values of rotation speed.

What is the effect of the relative speed between the deposit and the substrate on the bonding process?

the relative speed between the deposit and the substrate shears the bonding interface, disrupting and impairing the on-going diffusion bonding process.

What is the main reason why FS is not considered as a new technology?

Although FS is not considered as a new technology, the demand for superior coating solutions drives the on-going interest from the scientific community, making it a still emerging alternative process.

What is the use of tempering in high speed steels?

In an effort to develop alternative processing methods for high speed steels, Bedford et al. (2001) reported the use of tempering to induce secondary hardening on deposits produced by FS, comparing the resulting properties with the conventional production heat treatment process.

How much gap was determined between the edge of the previously deposited layer and the consumable rod?

This 0.3 mm gap was determined to allow frictional contact between the edge of the previously deposited layer and the rotating consumable rod, without restraining its movement.

What was the average wear rate of the coating material?

The average wear rate of the coating material was half of that of the substrate, while the beginning of the wear process took twice as long (Fig. 15d).

Open AccessJournal Article10.1016/J.JMATPROTEC.2013.12.008

Friction surfacing—A review

João Gandra, +5 more

- 01 May 2014

- Journal of Materials Processing Technolo...

- Vol. 214, Iss: 5, pp 1062-1093

271

TL;DR: Friction surfacing (FS) is a solid state technology with increasing applications in the context of localized surface engineering and has been investigated mainly for producing fine grained coatings, which exhibit superior wear and corrosion properties.

About: This article is published in Journal of Materials Processing Technology. The article was published on 01 May 2014. and is currently open access. The article focuses on the topics: Surface engineering.

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Most frequently asked questions

1. What are the contributions in this paper?

Starting with a brief introduction, this review presents a detailed description of the thermo-mechanical and microstructural transformations, as well as, process modelling approaches.

2. Why is the heat dissipation of a material restricted to solid state?

Because the heat generated by friction dissipation tends to zero as the material gets near the fusion temperature the maximum temperature achieved within processed zone is physically limited by the fusion temperature and thus all the deformation is restricted to solid state condition.

3. What was the effect of increasing the force on the coating thickness?

Experimental data revealed that by increasing force, an increase in bond strength could be expected, while reducing coating thickness and the undercut.

4. What is the process used to shape the deposit?

Post-processing based on material removal is then used to shape the deposit into the desirable geometry, depending on part specifications.

Table 4. Investigations reporting the production of composites by FS.

Fig. 1. Friction surfacing of an AA6082-T6 aluminium alloy over AA2024-T3. (a) Rotation start, (b) initial contact, (c) initial deformation stage and (d) deposition stage.

Fig. 4. Typical top view of FS deposits. (a) AISI H13 over AISI 1020 (Rafi et al., 2010a), (b) AA2017 over AA5052 (Tokisue et al., 2006), (c) AISI 310 over AISI 1020 (Rafi et al., 2010b).

Fig. 40. Macrostructures of multilayer deposit for several overlapping distances. AA5052 over AA2017 (Tokisue et al., 2006).

Fig. 39. Effect of overlapping distance on the appearance of multilayer deposits. FS of AA5052 over AA2017 (Tokisue et al., 2006).

Fig. 28. Effect of consumable rod diameter and travel speed on austenitising kinetics. (a) Analytical relationship between the time spent in austenization domain, the traverse speed and the rod diameter, (b) effect of distance from centre (dc) for a 32 mm diameter rod (here referred as mechtrode), (c) effect of rod diameter (Md) (Bedford et al., 2001).

Citations

Journal Article•10.1007/s00170-023-11378-1

Influence of rotation speed on interfacial bonding mechanism and mechanical performance of aluminum 6061 fabricated by multilayer friction-based additive manufacturing

Wenshen Tang, +2 more

- 13 Apr 2023

- The International Journal of Advanced Ma...

Journal Article•10.1016/J.JALLCOM.2017.04.253

Study on the combination of cobalt-based superalloy and ferrous alloys by bimetal-layer surfacing technology in refabrication of large hot forging dies

Li Shen, +5 more

- 15 Aug 2017

- Journal of Alloys and Compounds

TL;DR: In this article, a combination of two ferrous alloys (JXHC30 and JXHC15) was used for refabrication of hot forging dies through bimetal-layer surfacing.

...read moreread less

Journal Article•10.1016/J.SURFCOAT.2020.125980

Microstructural, tribological, and texture analysis of friction surfaced Al-Mg-Cu clad on AA1050 alloy

Zahra Rahmati, +3 more

- 15 Sep 2020

- Surface & Coatings Technology

TL;DR: In this article, the effect of axial feeding rate of the consumable rod was investigated on the microstructure, texture, and tribological characteristics of AA2024 aluminum alloy cladding over AA1050 alloy.

...read moreread less

•Journal Article•10.1590/1980-5373-MR-2018-0301

Investigation of Austenitic Stainless Steel Coatings on Mild Steel Produced by Friction Surfacing Using a Conventional CNC Machining Center

Fernanda Christina Teotonio Dias Troysi, +3 more

- 21 Jan 2019

- Materials Research-ibero-american Journa...

TL;DR: In this article, a viability assessment of producing AISI 304 austenitic stainless steel coatings on low carbon steel substrates using a machining center with Computerized Numerical Control (CNC) instead of dedicated friction surfacing equipment was pursued.

...read moreread less

Journal Article•10.1016/j.pmatsci.2024.101330

Friction stir based welding, processing, extrusion and additive manufacturing

F.C. Liu, +5 more

- 01 Jun 2024

- Progress in Materials Science

...

Expand

References

•Book

Friction Stir Welding and Processing

Rajiv S. Mishra, +1 more

- 30 Mar 2007

TL;DR: Friction stir welding (FSW) is a relatively new solid-state joining process that is used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding as discussed by the authors.

...read moreread less

Journal Article•10.1007/S11661-007-9459-0

Friction stir processing technology: A review

Zongyi Ma

- 01 Feb 2008

- Metallurgical and Materials Transactions...

TL;DR: Friction stir welding (FSW) is an emerging metalworking technique that can provide localized modification and control of microstructures in near-surface layers of processed metallic components.

...read moreread less

1.1K

Journal Article•10.1016/J.JMATPROTEC.2012.03.013

Performance analysis of friction surfacing

João Gandra, +2 more

- 01 Aug 2012

- Journal of Materials Processing Technolo...

TL;DR: In this article, the influence of forging force, consumable tilt angle, travel and rotation speeds on interfacial bond properties and process efficiency of mild steel was investigated, and the applied load on the consumable rod was found essential to improve joining efficiency and to increase the deposition rate.

...read moreread less

128

Journal Article•10.1002/SIA.1088

Interface evolution and bond strength when diffusion bonding materials with stable oxide films

Amir A. Shirzadi, +2 more

- 01 Jul 2001

- Surface and Interface Analysis

TL;DR: In this paper, the effects of stable surface oxides on the interface morphologies and strength of aluminium diffusion bonds are reviewed and compared for both solid-state diffusion bonding and conventional transient liquid-phase diffusion bonding.

...read moreread less

120

Journal Article•10.1016/J.MATDES.2010.06.031

Microstructural evolution during friction surfacing of tool steel H13

H. Khalid Rafi, +3 more

- 01 Jan 2011

- Materials & Design

TL;DR: In this article, the microstructural evolution during friction surfacing of H13 tool steel is discussed, and the current work shows that friction surfaced tool steel coatings are suitable for use in as-deposited condition.

...read moreread less

103

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Friction surfacing—A review

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AI Agents for this Paper

Most frequently asked questions

1. What are the contributions in this paper?

2. Why is the heat dissipation of a material restricted to solid state?

3. What was the effect of increasing the force on the coating thickness?

4. What is the process used to shape the deposit?

5. What is the effect of the increased friction on the bonding efficiency?

6. What is the common method of actuating the consumable rod?

7. What is the first approach to controlling the axial load applied on the consumable rod?

8. What are the main concerns related to the modelling of FS?

9. What was the method of deposition of aluminium over mild steel?

10. What was the effect of the ratio between the feed rate of the consumable and the travel speed?

11. What is the effect of the relative speed between the deposit and the substrate on the bonding process?

12. What is the main reason why FS is not considered as a new technology?

13. What is the use of tempering in high speed steels?

14. How much gap was determined between the edge of the previously deposited layer and the consumable rod?

15. What was the average wear rate of the coating material?

Figures

Citations

Influence of rotation speed on interfacial bonding mechanism and mechanical performance of aluminum 6061 fabricated by multilayer friction-based additive manufacturing

Study on the combination of cobalt-based superalloy and ferrous alloys by bimetal-layer surfacing technology in refabrication of large hot forging dies

Microstructural, tribological, and texture analysis of friction surfaced Al-Mg-Cu clad on AA1050 alloy

Investigation of Austenitic Stainless Steel Coatings on Mild Steel Produced by Friction Surfacing Using a Conventional CNC Machining Center

Friction stir based welding, processing, extrusion and additive manufacturing

References

Friction Stir Welding and Processing

Friction stir processing technology: A review

Performance analysis of friction surfacing

Interface evolution and bond strength when diffusion bonding materials with stable oxide films

Microstructural evolution during friction surfacing of tool steel H13

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