Abstract Forging is a widely used manufacturing process, and its design modeling are important to reducing production costs, increasing die lifespan, improving the mechanical properties of final product. In this study, forging process connecting rod was modeled using 3D coupled Eulerian Lagrangian (CEL) analysis by FEM. The methodology adopted achieved determine preform geometry that reduces fl...

Purpose: To predict the minimum value of additional material volume for an acceptable preform product. To predict an acceptable preform product without shape defect such as unfilling in a closed-die forging operation. Design/methodology/approach: In order to reduce the number of experiments, an orthogonal array from the Taguchi’s experimental method will be utilized to design the process parame...

This paper aims to improve the mechanical properties and fatigue life of AISI/SAE 4140 alloy steel connecting rods (CRs). Conventional CRs are typically manufactured through open die forging/hammering, blocking, hot forging processes. In present work, a modification process route has been proposed such that forging/hammering was completely replaced with multistep asymmetrical reducer rolling te...

The demand for more efficient manufacturing processes has been increasing in the last few years. The cold forging process is presented as a possible solution, because it allows the production of parts with a good surface finish and with good mechanical properties. Nevertheless, the cold forming sequence design is very empirical and it is based on the designer experience. The computational model...

Improvement of die life in the hot forging of brass alloys is considered vital from both technical and economical points of view. In this research, pin-ondisc tests were carried out at a range of temperatures to evaluate the influence of plasma nitriding and duplex nitriding-physical vapour deposition (PVD), including TiN-TiAlN and TiN-TiAlN-CrAlN coatings, on the tribological properties of AIS...

Salah satu suku cadang yang penting dalam kendaraan jenis tank adalah perangkat roda disebut bogie wheel. Boggie wheel merupakan bagian dari sistem terdiri track, arm, bracket dsb. Bogie terbuat material aluminium ditempa (forging). Saai ini proses pembuatan whell menggunakan baja dengan permesinan. Akibat pergantian tersebut maka bertambah bobotnya sebesar 4 ton. Hal berpengaruh pada manuver s...