Record Details

SOME STUDIES ON WEAR CHARACTERISTICS OF ROTAVATOR BLADES

KrishiKosh

View Archive Info
 
 
Field Value
 
Title SOME STUDIES ON WEAR CHARACTERISTICS OF ROTAVATOR BLADES
 
Creator Ramulu, Chelpuri
 
Contributor Dave, A.K.
Srinivas, I.
Victor, V.M.
Bajpai, R.K.
Saxena, R.R.
 
Subject ROTAVATOR BLADES
Farm Machinery, Power Engineering
 
Description Tillage is the most important unit and more energy consumption operation
in agriculture. The most widely accepted method of tilling land is ploughing with
plough and cultivators. These invert the upper soil layer, without proper mixing of
soil, hence these needs additional operations of rotavator and harrow to improve
soil tilth on the ploughed land. The tractor mounted rotavator holds promise for
overcoming these problems. Rotavator saves 30-35 % of time and 20-25 % in the
cost of operation as compared to tillage by cultivator. It gave higher quality of
work (25-30 %) than as cultivator. Rotavator under dynamic loading, blades are
subjected to fatigue and abrasive wear. Abrasive wear has been emerged as a
serious problem in rotavator blades. It increases the down time and maintenance
xi
cost. The objective of this study was to increase the wear resistance and reduce the
down time by strengthening the rotavator blades by surface modification. In this
study coating of 3 material (Tungsten carbide, Stellite-21 and Chromium Carbide)
have been done on different makes of L- type rotavator blades using electro spark
coating, with 3 modes for each material. Out of this study, the coating material
Tungsten carbide was found better in reference to wear loss compared to rest of the
coated materials. The wear loss was minimum in T2 (Tungsten carbide 4th mode)
treatment of blade 2 compared to other treatments on the basis of weight and
volume. The hardness of the treatment C2 (Chromium carbide 4th mode) (58.33
HRA) of blade 2 was higher compared to the rest of the treatments in both blade 1
and blade 2. The study concluded that Tungsten carbide may be a material coating
material for reducing wear loss in rotavator blade. However better hardness was
achieved under chromium carbide coating.
 
Date 2016-12-16T11:11:14Z
2016-12-16T11:11:14Z
2016
 
Type Thesis
 
Identifier 90 p.
http://krishikosh.egranth.ac.in/handle/1/90500
 
Language en
 
Format application/pdf
 
Publisher Indira Gandhi Krishi Vishwavidyalaya, Raipur