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Selection of material and heat treatment cycle for wear reduction in oil palm (elaeis guineensis) harvesting knives

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Title Selection of material and heat treatment cycle for wear reduction in oil palm (elaeis guineensis) harvesting knives
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Creator Singh, Dushyant
Saha, K.P.
Naik, R.
Bhushanbabu, V.
Prasad, M.V.
Singh, T V
 
Subject Heat-treatment, Abrasive wear, oil palm, harvesting
 
Description Not Available
Harvesting of oil palm is a tedious and labor intensive work. Nonavailability of proper tool increases the severity of the problem. Knives used for harvesting the oil palm are either imported or made by local artisans using locally available scrap material. In the present study, oil palm harvesting knives imported from Malaysia and locally made by manufactures in Kerala, India were tested for chemical composition and hardness. On the basis of the results, medium carbon steel was selected for fabrication of oil palm harvesting knives. To obtain the various combinations of microstructure, mechanical properties and wear resistance; these knives were subjected to quenching and tempering treatment with varying tempering temperature (from 250 to 550°C at an interval of 50°C). Abrasive wear resistance of this steel before and after heat-treatment was studied in laboratory using dry sand abrasion test rig as per ASTM G 65 standard at different rotational speed of rubber wheel ranging from 50 to 200 min-1 at an interval of 50 min-1. The study revealed that both the factors i.e. tempering temperature and rotational speed of rubber wheel exerted significant influence on abrasive wear resistance. At 250°C tempering temperature, the hardness and abrasive wear resistance is observed to be maximum under the laboratory evaluation. Similar wear resistance behavior was also observed under field condition when the knives were used to cut frond and bunch of oil palm by human laborers.
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Date 2021-08-16T10:12:47Z
2021-08-16T10:12:47Z
2016-01-01
 
Type Article
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/57337
 
Language English
 
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Publisher Not Available