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The process capability study by the flange shaft production

Lestyánszka-Škurková Katarína, Pauliková Alena

Quality Production Improvement - QPI

2021

Vol. 3, Iss. 1

305--313

Ensuring the process0capability currently means the warranty, that produced products will be0in accordance with requirements – from company´s side or from customer´s side. This study focuses on the statistical control of flange shaft proces capability by serial production0in company focused on products for automotive. The flange shaft proces is evaluated by control charts,0specifically by control chart for average and range ([iks z kreską poziomą u góry], R). As the results showed, based on diagram for average and range we are able0to say that the turning process is under the statistical control. Also, we had finished the0reguest for capability of process, where0the indexes of capability process Cpk1 and Cpk2 are higher than the determined value on 1.33 point. The normality of the measured values was verified by histogram. Obtained values are: Cpk1 = 1.645 a Cpk = 1.52. Therefore, we can consider the process as capable.