Abstract As modern industry advances, the demand for more time and cost effective machining is rising. In order to achieve high levels of standard during it necessary employ sophisticated techniques precise prediction various important parameters that relate processes. Such technique implementation finite element modelling (FEM) which can become a valuable tool researchers engineers alike. this...

The abrasive characteristics of LM6 alloys are difficult to machine, so designing a technology that allows for effective machining is essential. This paper aims evaluate the effect process variables, namely feed rate, spindle speed and drill material, towards responses like Thrust force, Surface roughness burr height when drilling alloy. aluminium alloy was fabricated by stir casting process. E...

Bu çalışmada, Poli-eter-eter-keton (PEEK)-CF30 kompozit malzemenin kaplamasız HSS matkapla delinmesinde oluşan itme kuvveti, yüzey pürüzlülüğü ve delaminasyon faktörünün kesme parametrelerine göre değişimleri araştırılmıştır. Delme deneyleri üç farklı hızı (40, 80, 120 m/dk) ilerleme miktarı (0.1, 0.15, 0.2 mm/dev) kullanılarak kuru işleme şartlarında yapılmıştır. Delmede kuvvetleri Kistler din...

In today’s world, the leading industries are very much concerned about reducing down-time and increasing the productivity as well as the quality. To increase the product quality, the tool should have good performance. Drilling process is widely used in the manufacturing operations in all the manufacturing industries. In this study, two Hidden Markov Models (HMM) such as bar-graph method and the...

Drilling is a widely used machining process. As the hole drilling operation progresses, a drill-bit gradually degrades until it breaks at the end of its life. Replacing a drill-bit after it is breakage can be costly in certain special applications. At the same time an early tool replacement decision may lead to lower tool life utilisation. This calls for methods that enable accurate prediction ...

The characteristics of carbon fibre reinforced laminates have widened their use from aerospace to domestic appliances, and new possibilities for their usage emerge almost daily. In many of the possible applications, the laminates need to be drilled for assembly purposes. It is known that a drilling process that reduces the drill thrust force can decrease the risk of delamination. In this work, ...

This paper investigates the formation of the exit defects in carbon fibre-reinforced plates and characterizes their features in terms of drilling conditions. It was found that spalling and fuzzing are the major mechanisms of exit defects. The spalling, consisting of a main region and a secondary region, is caused by chisel and cutting edge actions, in which the former plays a key role. The fuzz...