Selection of resin and aggregates for particulate polymer concrete machine tool structures-A review

Mula, Venkata Ramana; Thyla, P. R.; Mahendrakumar, N.; Praveena, K.

doi:10.1016/j.matpr.2021.03.595

Cited by 9 publications

(4 citation statements)

References 46 publications

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“…Due to its considerable damping ability and lower cost, it is a prospective material to enhance the damping performance for machine tool structures such as bases and columns [3][4][5][6][7]. One of the preferred choices for materials of the machine tool structures is Granite-epoxy composite due to its high damping ability and lightweight compared to traditional metals [8,9]. Arjun et al [10] enhanced the natural frequencies of the steel-reinforced epoxy granite column of the machine structure by 20% utilizing the Topology optimization approach and finite elements analysis.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties and damping characteristics of Egyptian granite-epoxy composite material

Abdelrhman,

Omar,

Hassab-Allah

et al. 2024

Mater. Res. Express

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Vibrations generated during the operations of machine tools, especially at high-speed operation impactseveral issues in machined parts such as imprecision dimensions and a poor surface finish. This promptsresearch and studies into alternative materials for machine tool structures to provide considerabledamping performance and acceptable stiffness compared to traditional materials. This paper deals withthe experimental study of a developed granite-epoxy composite, made from waste granite and localepoxy as an alternative material for machine tool structures. A waste of Egyptian Red Aswan granitewas used as filler after being crushed and sifted into three sizes: fine (less than 1 mm), medium (1 to 5mm), and coarse (5 to 8 mm). A local commercial epoxy resin kemapoxy 150 was added to a graniteaggregate mixture having grain proportions 50:25:25 for fine, medium, and large, respectively. Theinfluence of the variation of the epoxy weight ratio on the static and damping characteristics of aproposed granite–epoxy composite material was experimentally investigated. To ensure a coherentgranite-epoxy composite, the required minimum resin content of 13.88 wt.% was determined, and thegranite/epoxy ratios were selected as 85:15 wt.%, 80:20 wt.%, and 75:25 wt.%. The findings exhibitthat the largest compressive strength of 76.8 MPa and the greatest flexural strength of 35.4 MPa isachieved at the highest epoxy weight ratio of 25%. The largest damping ratio of 0.0202 is observed atthe epoxy ratio of 20% and it decreases to 0.015 when the epoxy ratio is increased to 25%. An Egyptiangranite-epoxy composite, made from waste granite and local epoxy, is a promising alternative materialfor machine tool structures. It offers both economic and environmental benefits, along with highmechanical and damping properties compared to traditional machine tool materials.

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Section: Introductionmentioning

confidence: 99%

Mechanical properties and damping characteristics of Egyptian granite-epoxy composite material

Abdelrhman,

Omar,

Hassab-Allah

et al. 2024

Mater. Res. Express

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“…Cast iron (CI) is commonly used as a material for the base or bed since they are essential parts that hold all the other parts together and also can absorb shocks and vibrations [3] and [4]. Instead of CI, mineral castings such as tailor-made polymer concrete (PC) materials have gained popularity in recent years for use in highperformance and high-speed machine tools to ultraprecision machines and metrology applications due to their excellent damping characteristics [5] to [7].…”

Section: Introductionmentioning

confidence: 99%

Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed

Mula¹,

Thyla²,

Subramanian³

et al. 2023

sv-jme

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Polymer concrete or epoxy granite is becoming more popular for beds, bases, and other structures of precision machine tools, owing to its excellent damping characteristics. To realize the same static rigidity as that of the cast-iron structures, steel-reinforced epoxy granite (SREG) structures are being used. The vast differences in the thermal properties of steel and epoxy granite (EG) are likely to cause higher magnitudes of thermal error. This work aims to investigate the thermal behaviour of a computerized numerical control (CNC) lathe built with a novel dynamically enhanced SREG bed and compare its performance with the lathe with a cast iron bed. Experimental and numerical investigations have been carried out under cross-feed (CF) drive idle running conditions to determine the TCP deformation. The results reveal that the thermal error in the CNC lathe with SREG bed is 1.68 times that of the lathe with cast iron (CI) bed at 20 ºC and 1.8 times at 40 ºC environmental temperature variation chamber (ETVC) conditions. It could be identified that the heat generated in the CF is conducted to the steel guideways embedded in the SREG bed, but further heat transfer to the EG portion of the bed is impeded, and hence the heat accumulation that occurs in the guideways leads to higher magnitude of the thermal error. The experimentally validated numerical model is used to extend the investigations to study the effect of the idle running of the longitudinal feed drive (LF) and combined cross and longitudinal feed drives, on the thermal behaviour of the lathe.

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“…Resin mineral composites are widely used as components of precision machinery because of their excellent dynamic characteristics (Venkata et al. , 2021; Hia et al ., 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Resin mineral composites are widely used as components of precision machinery because of their excellent dynamic characteristics (Venkata et al, 2021;Hia et al, 2016). Due to its natural defect of structural characteristics and complexity in manufacturing process, the resin mineral composites are prone to suffer fatigue damage and form microcracks in the material structure (Vahedi and Pasbakhsh, 2014), reducing the structural reliability furtherly.…”

Section: Introductionmentioning

confidence: 99%

An micro-level study on the cracking performance of encapsulation-based self-healing resin mineral composites under dynamic load based on XFEM

Huang

Fan

Huang

et al. 2023

MMMS

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PurposeAs an efficient self-healing intelligent material, the encapsulation-based self-healing resin mineral composite (SHC) has a broad application prospect.Design/methodology/approachAiming at the cracking performance of SHC, the dynamic load condition is employed to replace the traditional static load condition, the initial damage of the material is considered and the triggered cracking process and influencing factors of SHC are analyzed based on the extended finite element method (XFEM). In addition, the mechanism of matrix cracking and microcapsule triggered cracking process is explained from the microscopic point of view, and the cracking performance conditions of SHC are studied. On this basis, the response surface regression analysis method is used to obtain a second-order polynomial model of the microcapsule crack initiation stress, the interface bonding strength and the matching relationship between elastic modulus. Therefore, the model could be used to predict the cracking performance parameters of the microcapsule.FindingsThe interfacial bonding strength has an essential effect on the triggered cracking of the microcapsule. In order to ensure that the microcapsule can be triggered cracking normally, the design strength should meet the following relationship, that is crack initiation stress of microcapsule wall < crack initiation stress of matrix < interface bonding strength. Moreover, the matching relationship between elastic modulus has a significant influence on the triggered cracking of the microcapsule.Originality/valueThe results provide a theoretical basis for further oriented designing of the cracking performance of microcapsules.

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Selection of resin and aggregates for particulate polymer concrete machine tool structures-A review

Cited by 9 publications

References 46 publications

Mechanical properties and damping characteristics of Egyptian granite-epoxy composite material

Mechanical properties and damping characteristics of Egyptian granite-epoxy composite material

Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed

An micro-level study on the cracking performance of encapsulation-based self-healing resin mineral composites under dynamic load based on XFEM

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