Study on the grinding behavior of laser-structured grinding in silicon nitride ceramic

Zhang, X. H.; Wen, Dongdong; Deng, Zhaohui; Li, S.; Wu, Qiao; Jiang, Jintao

doi:10.1007/s00170-018-1743-1

Cited by 18 publications

(4 citation statements)

References 18 publications

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“…However, the inherent limitations of an injection molding tool fabricated with Al-filled epoxy resin include their low mechanical properties and heat transfer capability compared with STAVAX stainless steel [41]. These limitations can further be improved by adding copper powders [42,43], molybdenum disulfide [44][45][46][47], zirconia ceramics [48,49], or silicon nitride ceramics [50][51][52][53] particles in the mixture. These issues are currently being investigated, and the results will be presented in a later study.…”

Section: Resultsmentioning

confidence: 99%

Development of a Rapid Tool for Metal Injection Molding Using Aluminum-Filled Epoxy Resins

Kuo,

Pan

2023

Polymers

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Metal injection molding (MIM) is a near net-shape manufacturing process combining conventional plastic injection molding and powder metallurgy. Two kinds of injections molds for MIM were developed using conventional mold steel and aluminum (Al)-filled epoxy resins in this study. The characteristics of the mold made by rapid tooling technology (RTT) were evaluated and compared with that of the fabricated conventional machining method through the MIM process. It was found that the service life of the injection mold fabricated by Al-filled epoxy resin is about 1300 molding cycles with the average surface roughness of 158 nm. The mold service life of the injection mold fabricated by Al-filled epoxy resin is about 1.3% that of the conventional mold steel. The reduction in manufacturing cost of an injection mold made by Al-filled epoxy resin is about 30.4% compared with that of the fabricated conventional mold steel. The saving in manufacturing time of an injection mold made by RTT is about 30.3% compared with that of the fabricated conventional machining method.

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Section: Resultsmentioning

confidence: 99%

Development of a Rapid Tool for Metal Injection Molding Using Aluminum-Filled Epoxy Resins

Kuo,

Pan

2023

Polymers

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“…However, inherent limitations of injection molding tool fabricated with Al-lled epoxy resins are their low mechanical properties and heat transfer capability compared to STAVAX stainless steel [41]. These limitations can further be improved by adding copper powders [42,43], molybdenum disul de [44][45][46][47], zirconia ceramics [48,49], or silicon nitride ceramics [50][51][52][53] particles in the mixture. These issues are currently being investigated and the results will be presented in a later study.…”

Section: Resultsmentioning

confidence: 99%

Development and Application of Rapid Injection Molds Using Aluminum-Filled Epoxy Resins for Metal Injection Molding

Kuo¹,

Pan²,

Tasi³

2021

Preprint

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Metal injection molding (MIM) is a near net-shape manufacturing process combing conventional plastic injection molding and powder metallurgy. Two kinds of injections molds for MIM were developed using conventional mold steel and aluminum (Al)-filled epoxy resins in this study. The characteristics of the mold made by rapid tooling technology (RTT) were evaluated and compared to that fabricated conventional machining method through MIM process. It was found that the service life of the injection mold fabricated by Al-filled epoxy resins is about 1300 molding cycles. The saving in manufacturing cost of an injection mold made by Al-filled epoxy resins is about 30.4% compared to that fabricated conventional mold steel. The saving in manufacturing time of an injection mold made by RT technology is about 30.3% compared to that fabricated conventional machining method.

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“…Also, by examining the morphology of the grinding wheel, lower wear of grinding wheel compared to non-structured case was inferred. 24 Continuing his previous work, these authors created patterns on Ti6Al4V and measured the grinding temperature in addition to previous outputs. The results revealed the insignificant effect of patterns on the surface roughness; while, the forces and grinding temperature were reduced significantly (56% and 52%) through the use of patterns.…”

Section: Introductionmentioning

confidence: 95%

An experimental study on the creep feed grinding of laser macro-structured alumina considering constant material removal volume

Nadi

Esmaeilzadeh

Raftar

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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Engineering ceramics such as alumina have found special applications in aerospace, electronics, and automotive industries due to their superior mechanical and thermal properties. Among these properties, chemical stability at high temperatures, high strength to weight ratio, hardness, strength, wear, and corrosion resistance are of prime importance. Due to these superior properties, processing of these ceramics encounters some difficulties and requires special machining processes such as diamond grinding; in addition to high manufacturing costs, this technique suffers from noticeable challenges such as high grinding forces and temperatures which may lead to serious surface damages. To overcome these challenges, in recent years, laser-assisted grinding has been introduced; in this process, laser source is used to preheat or structuring the workpiece surface in order to reduce grinding forces and temperatures. In this research, first four different patterns were created on alumina using a pulsed laser. Then, these weakened structures were machined using creep feed grinding. In order to provide a better understanding from the effect of each pattern, the volume of the material that can be removed was kept constant in all four patterns. Finally, the effect of created patterns on grinding forces and surface roughness has been studied. Besides, scanning electron microscopy has been used to investigate possible surface damages. The results showed that the normal and tangential forces in the non-structured case were 2 and 2.7 times higher than the forces recorded in the best patterned samples. However, no significant effect of the created patterns on the surface roughness was observed. Furthermore, serious heat damage and cracks were not observed in the structured workpieces, but non-structured workpieces were crushed during operation. Among the created patterns, pattern with perpendicular grooves to the grinding direction was introduced as the best.

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Study on the grinding behavior of laser-structured grinding in silicon nitride ceramic

Cited by 18 publications

References 18 publications

Development of a Rapid Tool for Metal Injection Molding Using Aluminum-Filled Epoxy Resins

Development of a Rapid Tool for Metal Injection Molding Using Aluminum-Filled Epoxy Resins

Development and Application of Rapid Injection Molds Using Aluminum-Filled Epoxy Resins for Metal Injection Molding

An experimental study on the creep feed grinding of laser macro-structured alumina considering constant material removal volume

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Study on the grinding behavior of laser-structured grinding in silicon nitride ceramic

Cited by 18 publications

References 18 publications

Development of a Rapid Tool for Metal Injection Molding Using Aluminum-Filled Epoxy Resins

Development of a Rapid Tool for Metal Injection Molding Using Aluminum-Filled Epoxy Resins

Development and Application of Rapid Injection Molds Using Aluminum-Filled&nbsp;Epoxy Resins for Metal Injection Molding

An experimental study on the creep feed grinding of laser macro-structured alumina considering constant material removal volume

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Development and Application of Rapid Injection Molds Using Aluminum-Filled Epoxy Resins for Metal Injection Molding