A study of creep-feed grinding of metallic and ceramic materials

Zhang, L.C.; Suto, Tetsuya; Noguchi, H.; Waida, Tohru

doi:10.1016/0924-0136(94)01658-n

Cited by 21 publications

(12 citation statements)

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“…A higher value of the grinding wheel radial wear is obviously accompanied by a higher characteristic value of the surface roughness, because the grinding wheel topography influences the surface roughness of the workpiece to a high degree [5]. The characteristic value of the surface roughness is significantly higher in grinding with a vitrified bonded diamond grinding wheel in comparison to a resinoid bonded one.…”

Section: Resultsmentioning

confidence: 99%

“…The processes of grinding silicon nitride and cemented carbide materials differ in many aspects, like the material removal and the damage mechanism due to their different material properties [4,5]. This grinding process presents a great challenge owning to the specific characteristics of the silicon nitride cutting material like the high toughness and brittleness need special consideration during the whole grinding process.…”

Section: Introductionmentioning

confidence: 99%

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A study of grinding silicon nitride and cemented carbide materials with diamond grinding wheels

Biermann

Würz

2009

Prod. Eng. Res. Devel.

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This paper presents selected results of the grinding of silicon nitride and cemented carbide materials with diamond grinding wheels, which will in later research be extended to the grinding of ceramic-cemented carbide compound drill tools. In these fundamental experiments four different types of diamond grinding wheels were used in face grinding processes. The diamond grinding wheels vary by the grain size, the grain concentration and the bonding material. The relevant influencing variables such as the cutting and feed speed and the coolant supply method were varied to investigate the effect on grinding of the two different workpiece materials, the brittle silicon nitride workpiece material and the ductile cemented carbide workpiece material. Some factors, which have significant effects, like the radial wear of the grinding wheel, the components of the grinding forces, the normal and the tangential grinding force, and the surface quality of the ground workpieces are discussed in detail.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A study of grinding silicon nitride and cemented carbide materials with diamond grinding wheels

Biermann

Würz

2009

Prod. Eng. Res. Devel.

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“…Since specific energy is mainly expended by ductile flow (plowing) [34,35], the steep increase of specific energy at very small depths of cut can be attributed to an increased tendency for ductile flow. Surface roughness decreases when the ductile cutting mechanism prevails in material removal [36]. Therefore, a better surface finish might correspond to a larger specific energy due to more energy being expended by plastic deformation.…”

Section: Discussionmentioning

confidence: 98%

Micro-fine finishing of a feldspar porcelain for dental prostheses

Song

Yin

Han

et al. 2008

Medical Engineering & Physics

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Intraoral adjustment of ceramic prostheses involving micro-finishing using diamond burs is a critical procedure in restorative dentistry because the durability of a restoration depends on the finishing process and quality. Force, energy and surface integrity in micro-fine finishing of a feldspar porcelain versus operational parameters were investigated using a 2-DOF (two-degrees-of-freedom) high-speed dental handpiece and a fine diamond bur of 20-30 microm grits. The tangential and normal forces were measured as being significantly small in the ranges 0.18-0.35 N and 0.22-0.59 N, respectively. High specific finishing energy of 110-2523J/mm(3) was observed in material removal, particularly when decreasing either the depth of cut or the feed rate. Scanning electron microscopy observations indicated that the surfaces generated were mainly due to ductile flow; however, microfractures also occurred in porcelain. Surface roughness was measured as 0.43-0.74 microm in terms of arithmetic mean value (R(a)), decreasing with the depth of cut, but insignificantly changing with the feed rate (ANOVA, P>0.05). Recommendations for clinical practice are made on the basis of our testing results.

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“…Now let us consider the development of residual stresses. Relevant studies on residual stresses in a ground component have concluded that their creation is due to mechanical traction, thermal deformation and phase transformation [22]. The mechanical traction generally produces compressive stresses.…”

Section: Article In Pressmentioning

confidence: 99%