Machining process automation of large-size elements

Process-based tolerance assessment of connecting rod machining process

Process tolerancing based on the process capability studies is the optimistic and pragmatic approach of determining the manufacturing process tolerances. On adopting the define–measure–analyze–improve–control approach, the process potential capability index (C p) and the process performance capability index (C pk) values of identified process characteristics of connecting rod ...

Process capability improvement of an engine connecting rod machining process

Statistical process control is an excellent quality assurance tool to improve the quality of manufacture and ultimately scores on end-customer satisfaction. SPC uses process monitoring charts to record the key quality characteristics (KQCs) of the component in manufacture. This paper elaborates on one such KQC of the manufacturing of a connecting rod of an internal combustion engine. Here th...

Elements of Automation and Control

New Feed System of Machining Center in Flexible Automation*

In order to realize high speed machining, the special requirements for feed transmission system of machining center have to be satisfied. A high velocity feed unit driven by an induction linear motor has been developed. The architecture of the high velocity CNC feed unit is presented and difficulties encountered in the unit design are discussed.

A family of large set of size nine

 We investigate the existence of some‎ ‎large sets of size nine‎. ‎The large set $LS[9](2,5,29)$ is constructed and‎ ‎existence of the family $LS[9](2,5,27l+j)$ for $lgeq 1, ‎2leq‎ ‎j