外文翻譯--耐磨堆焊對于旋耕機刀片的磨損性的影響（英文）

1、 Procedia Engineering 97 ( 2014 ) 1442 – 1451 1877-7058 © 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-

2、nd/3.0/).Selection and peer-review under responsibility of the Organizing Committee of GCMM 2014 doi: 10.1016/j.proeng.2014.12.426 ScienceDirectAvailable online at www.sciencedirect.com12th GLOBAL CONGRESS ON MANUFACTUR

3、ING AND MANAGEMENT, GCMM 2014 Wear behavior of hardfacings on rotary tiller blades Amardeep Singh Kanga*, Gurmeet Singh Cheemaa, Shivali Singlab aBhai Gurdas Institute of Engineering Gas tungsten arc welding; Pin-on-dis

4、k; Abrsaive wear 1. Introduction Abrasive wear is a major cause for the premature failure of many agricultural ground tools especially engaged in some dry land agricultural areas. Heavy agricultural equipment operators

5、and farmers always faced with the frequent * Corresponding author. Tel.: +91-946-311-8859; fax: +0-000-000-0000 . E-mail address: amardeepkang@gmail.com © 2014 The Authors. Published by Elsevier Ltd. This is an ope

6、n access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/). Selection and peer-review under responsibility of the Organizing Committee of GCMM 20141444 Amardeep Singh Kang et al.

7、 / Procedia Engineering 97 ( 2014 ) 1442 – 1451 Figure 1 Leading edges of the tiller blades hardfaced with 5HCr, 8HCr, 12HCr, 7.5HCr (a) before grinding (b) after grinding Table 2 Welding parameters used in the t

8、est Parameters Hardfacing Alloys 5HCr 8HCr 12HCr 7.5HCr Electrode diameter (mm) 4 4 4 4 Arc voltage (V) 240 240 240 240 Welding current (AC/DC) Amp 169/AC 144/DC+1 125/DC+1 155/DC+1 Welding speed (mm/min)

9、 62-65 75-80 125-130 65-70 Gas Flow Rate (LPM) 15 10 10 10 Deposition rate (kg/h) 3.4 4.2 3.8 4.7 Gas Pressure (kg/cm2) 2.5 2.5 2.5 2.5 Type of Gas Argon Argon Argon Argon Tungsten electrode diameter(

10、mm) 2.4 2.4 2.4 2.4 Table 3 Chemical composition of four hardfacing alloys by wt.% Hardfacing electrode Chemical composition (wt.%) of hardfacing alloys C Si Mn Cr Mo P S V Fe 5HCr 0.7 0.45 0.4 5 0.8 -

11、 - 0.7 Balance 8HCr 0.4 0.5 0.6 8 0.5 - - - Balance 12HCr 0.8 0.01 0.48 12 - 0.021 0.03 0.6 Balance 7.5HCr 0.5 0.6 0.1 7.5 0.4 - 0.03 - Balance The typical welding parameters used in the pre

12、sent study are given in Table 2. These parameters were kept within the range as specified by the manufacturers and the sizes of the electrodes used were of 4 mm diameter size. The hardfacing alloys with high content of