On the Errors of Rockwell Hardness Number : 1st Report, The Effect of the Errors of Testing Load
Sadao YAMASHIRO · Transactions of the Japan Society of Mechanical Engineers · 1961
This paper is a part of the continued study on the errors of measurement of Rockwell hardness number and reports the results of experiment and the caluculated results from Meyer's law to find the effect of the errors of preliminary and total loads. Both results obtained by observation and theoretical calculation respectively coincided very well with each other. The errors due to the error in the total load W2 and the preliminary load W1 are given as follows : [numerical formula] and [numerical formula].