Mechanism of surface modification using machine hammer peening technology

Bleicher, Friedrich; Lechner, Christoph; Habersohn, Christoph; Kozeschnik, Ernst; Adjassoho, Beatrix; Kaminski, Heinz

doi:10.1016/j.cirp.2012.03.139

Cited by 70 publications

(28 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These are higher in orthogonal direction to the tool path than parallel to it [5]. Moreover, it is obvious that the smaller the distance of indentation and stepover distance as well as the lower the feed rate are chosen, the more overlap and therefore higher energy is induced [6].…”

Section: Machine Hammer Peeningmentioning

confidence: 97%

See 1 more Smart Citation

Mechanical Functionalisation of Cutting Inserts by Machine Hammer Peening

Reiter¹,

Krall²,

Bleicher³

2017

DAAAM Proceedings

Self Cite

View full text Add to dashboard Cite

Modern developments of functional components result in increasing demands on new materials and their characteristics. Therefore, the complexity of machining applications is also rising, and the challenges concerning wear resistance and longer lifetime of cutting tools continue to grow. The focus of this work is on the mechanical functionalisation of cutting inserts made of cemented tungsten carbide with a Ti-Al-N coating. The functionalisation of the cutting tools is caused by machine hammer peening of the cutting insert's rake face in order to influence surface-near layers, which results in material compaction of the treated areas and an inducement of residual compressive stresses.

show abstract

Section: Machine Hammer Peeningmentioning

confidence: 97%

“…Previous works like [4], [5] have shown that due to the preceding MHP-treatment on metallic materials, significant residual compressive stresses have been detected in the near-surface layers of the covered areas. These are higher in orthogonal direction to the tool path than parallel to it [5].…”

Section: Machine Hammer Peeningmentioning

confidence: 99%

Mechanical Functionalisation of Cutting Inserts by Machine Hammer Peening

Reiter¹,

Krall²,

Bleicher³

2017

DAAAM Proceedings

Self Cite

View full text Add to dashboard Cite

show abstract

“…Effect of unstable feed rate during MHP-machining As well as looking at the influence of the feed rate on the processing results, additionally the dynamic behaviour of the robot system while machining was investigated. As presented by Bleicher in [6], the velocity and therefore the kinetic energy of the impact are dependent on the stroke of the hammer tip. For this purpose, the distance between the robot flange, where the electromagnetic system is mounted, and the treated surface was measured using a non-contact eddy current displacement sensor.…”

Section: Dynamic Behaviour Of the Systemmentioning

confidence: 99%

“…As the results show, the stiffness values of the combined system, are below 1,1 N/µm for both, with and without MHP-actuator. As presented in [6], the occurring forces of the electromagnetic actuator are depending on the MHP-parameters I, f, h, where I is the intensity of the system, which is proportional to the current, f is the working frequency of the system and the so called stroke h represents the distance between the hammer tip and the treated surface. A consequence of the low stiffness of the robot and the acting process forces of the electromagnetic system is an increase of the distance between the tip and the surface.…”

Section: Static Behavior Of the Systemmentioning

confidence: 99%

Robot based machine hammer peening using an electromagnetic driven hammering device

Krall¹,

Lechner²,

Nirtl³

et al. 2016

DAAAM Proceedings

Self Cite

View full text Add to dashboard Cite

The usability of a component and in particular its functional performance is highly dependent on the properties of its surface and subsurface region. Machine hammer peening is a manufacturing process for the mechanical surface treatment of workpieces, with the aim to induce compressive residual stresses in near surface layers. This comes along with strain hardening effects and increased surface hardness of the edge layer. By the use of adequate process parameters, it is even possible to modify the surface topography. In order to implement machine hammer peening processes, NC-guided machine tools have to be used to generate single deterministic tool contact marks. In the course of this work an electromagnetic actuator system will be implemented on a 6-axes industrial robot KUKA KR30-3 and the static and dynamic behaviour of the robot during the hammer peening process will be investigated in order to evaluate the applicability to generate deterministic patterns.

show abstract

“…Hammering quality will differ when it's treated manual and by automated, due to this process the strain hardening and tribological characteristics is increased [9,10]. Also, the surface of the metal by induction of compressive residual stress using actuators provides hardness improvement of the upper surface of layer and reduction of surface roughness up to mirror-like surfaces [11]. Burnishing and hammer peening also provides an improvement of the surface layer, an important factor of failure is the crack initiation by defects so the defects can be controlled by the burnishing [12,13].…”

Section: Introductionmentioning

confidence: 99%

Effect of hammer peening with tungsten coating on fatigue properties of carbon steel under rotating bending

Kanchidurai

2017

Koroze a Ochrana Materialu

View full text Add to dashboard Cite

In the present study, we investigated the influence of hammer peening (HP) with tungsten carbide surface coating (WCSC) on high cycle bending fatigue performance of the carbon steel (CS) manufactured as specified in Bureau of Indian Standards BIS 2062 steel. Totally there are twenty-four numbers of specimens cast and tested to investigate fatigue performance. Constantly high cycle bending fatigue load (HBFL) were applied for all specimen, different range of bending stress applied to the specimen and the stress ratio maintained as R = 1. Investigation results show there is up to 40 percent of the fatigue life improvement possible by the surface treatments to the CS material. From the research to date the corrosion and pitting corrosion can be treated by modifying the surface layer of the metal by treating different peening methods and coating.

show abstract

Mechanism of surface modification using machine hammer peening technology

Cited by 70 publications

References 5 publications

Mechanical Functionalisation of Cutting Inserts by Machine Hammer Peening

Mechanical Functionalisation of Cutting Inserts by Machine Hammer Peening

Robot based machine hammer peening using an electromagnetic driven hammering device

Effect of hammer peening with tungsten coating on fatigue properties of carbon steel under rotating bending

Contact Info

Product

Resources

About