PRODUCTION AND COMPARATIVE ANALYSIS OF THE CHEMICAL AND MECHANICAL PROPERTIES OF IMPORTED AND LOCALLY PRODUCED LIGHT WEIGHT VEHICLE (PEUGEOT 504) BRAKE DRUM

Publication Date : 01/02/2008


Author(s) :

I. A Madugu, O. B. Oloche, E. O Atama.


Volume/Issue :
Volume 3
,
Issue 1
(02 - 2008)



Abstract :

Production and comparative analysis of imported and locally produced Peugeot 504 (light weight vehicle) brake drum made of gray cast iron were investigated. The casting process employed is the sand casting. The brakes on vehicles are safety devices and its failure could result in fatal accidents. It is therefore necessary that quality control tests were conducted on this vehicle sub system after production to ensure that the component meets with international specifications for good performance. A chemical composition of 3.54% C, 2.12% Si, 0.85% Mn, 0.12% S, and 0.16% P with carbon equipment (Ceq) value of 4.30% were established. Micro structural examination of the locally produced and imported light weight vehicle brake drums revealed that they are of the pearlite matrix plus ferrite structures. Mechanical tests revealed that tensile strength of 240 N/mm2, impact strength of 10.5 Joules and a hardness value of 216BHN were obtained. These results compare favourably with the imported lightweight vehicle brake drums. Lightweight vehicle brake drums can conveniently be cast using the sand casting method and the charge mix specified in this work (Table 2.5, L5). With the production to such crucial spares for the Peugeot 504 a lot of money will be saved through foreign exchange earrings with the stoppage of the importation of such spares.


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