The paper investigates the influence of some 3D printing conditions on physical-mechanical and technological properties polycaprolactone (PCL) wood-based biopolymer parts manufactured by FDM. Parts with 100% infill geometry according to ISO 527 Type 1B were printed a semiprofessional desktop FDM printer. A full factorial design three independent variables at levels was considered. Some (weight error, fracture temperature, ultimate tensile strength) (top lateral surface roughness, cutting...

The scientific literature regarding additive manufacturing, mainly the material extrusion method, suggests that mechanical characteristics of parts obtained by this technology depend on a number input factors specific to printing process, such as temperature, trajectory, layer height, etc., and also post-process operations for parts, which, unfortunately, requires supplementary setups, equipment, multiple steps raise overall costs. Therefore, paper aims investigate influence direction,...

The problem of waste generated by packaging obtained from conventional synthetic materials, often multilayer, has become more and pressing with increasing consumption. In this context, nature humanity have suffered the most. order to address phenomenon, global European organizations launched promoted programs strategies. Replacing petroleum-based biopolymer proven be a real alternative. Thus, substitution plastics biodegradable, non-toxic, edible which can marine or agro-industrial waste, is...

Abstract The aim of the present paper is to give a general overview on polycarbonate sheet incremental forming. Incremental forming promising machining process for small and batch production because its advantages in terms flexibility, low tool costs. Polycarbonates are high impact‐resistance scratch‐resistance thermoplastic polymers that have, their good workability, many industrial applications fields like automotive, aircraft, electrical, construction, medical, etc. investigates influence...

The present paper aims to contribute the methodology of 3D printing in-process colouring and study its implications impact on tensile strength surface quality obtained parts. proposed was based a Taguchi L27 DOE plan using standardised EN ISO 527-2 type 1B-shaped specimens, in which four factors three levels were considered. results highlight possibility presented method. Different materials (PLA, PLA+, PETG) with varying infill densities (15%, 30%, 50%), colour distribution (33%, 66%, 99%),...

Wire electrical discharge machining (WEDM) is a process that used when it necessary to manufacture small-width slots with micrometer accuracy or precisely detach parts complex contours from metal workpieces in the form of sheets plates. The fact wire electrode rests only working zone two its guides allows achieve micrometric oscillations, leading generation an error flat shape slot surfaces gradually develops into workpiece. widths are influenced by several factors, such as workpiece...

Abstract This paper presents a comprehensive investigation into the milling performance of Polyetheretherketone (PEEK), high-performance thermoplastic polymer widely used in various engineering applications. The study focuses on understanding impact cutting feed and machining strategies (zig, zig-zag, follow periphery) surface texture integrity during processes. Additionally, key factors such as maximum temperature, forces, variation hardness are systematically examined analyzed. Two ranges,...

The study investigates some 3D printing output parameters of a polycaprolactone (PCL) wood‐based biopolymer, category materials obtained by embedding wood‐derived components within polymeric matrices. These biopolymers have garnered significant focus in recent years due to their environmental friendliness and vast potential across many different fields. A full factorial design with three independent variables (layer height, speed, heat treatment exposure time) at levels was considered....

Abstract Continuous research in the field of metal additive manufacturing has led to need for constant improvement parameters especially case FDM (Fused Deposition Modeling) manufacturing. In recent years, main directions outlined productivity and quality were related higher printing speed use ironing-type processes. This article aims study dimensional accuracy surface FDM-manufactured 316L stainless steel. The degree novelty is given by application ironing process green part. A full...

When the threads are obtained by using turning tools, various factors able to affect machining accuracy. In order reveal way in which these exert influence on threading accuracy, an analysis of some proper situations obtaining universal lathes and tools was developed. The showed that thread profile error could be essentially affected position cutting tool active edges relative workpiece. Taking into consideration results analysis, aspects concerning requirements met during design a device...

Over the years, importance of creativity inclusively in field design activities was highlighted. In accordance with opinions certain researchers, divergent thinking could contribute to increase creative processes efficiency. On other hand, axiomatic method is considered as a able stimulate technical when problem designing mechanical equipment stated. To efficiency using method, possibility selecting most convenient solution among many available solutions be discussed. The analysis revealed...

Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Margareta Coteaţă, Hans‐Peter Schulze, Nicolae Pop, Irina Beşliu, Laurenţiu Slătineanu; Machinability of a Stainless Steel by Electrochemical Discharge Microdrilling. AIP Conference Proceedings 4 May 2011; 1353 (1): 1356–1360. https://doi.org/10.1063/1.3589705 Download citation file: Ris (Zotero) Reference...

The paper aims to highlight the significance and place of information-seeking in finding improved solutions design innovative products. observation method was used identify a way increase efficiency searching for information needed when pursuing creative solution problem. study based on experience gained professional activities higher education industrial engineering classes held two academic subjects, students’ creativity stimulated, including search information. One conclusion is that an...

The purpose of this study was to investigate and establish the correlations between milling tool geometry, cutting conditions, as input factors forces variations chips formation, output when end AISI D2 steel. experiments were carried out using a Taguchi design array. chip shape microstructure force components analyzed. results show that geometry has great influence over segmented formation mechanism levels.

Without ensuring high productivity, single-point incremental forming allows obtaining cavities in sheet-type workpieces by rotating and moving a rotary tool along predetermined path. The process can be used the case of both metal plastic sheets. heat generated processing area is expected to cause different elongations contractions, affecting final dimensional accuracy surfaces obtained. A full factorial experiment with three independent variables at two levels was investigate correlations...

As other nonconventional machining methods, the electrical discharge is applied when workpieces materials are difficult to be machined by classical methods or surfaces could not obtained in efficient conditions methods. Such a situation appear, for example, test pieces must separated from whose difficult. Taking into consideration necessity detach cylindrical piece workpiece made of high resistance metallic alloy, problem using was formulated. An initial experimental common work motion tool...

The knowledge about machinability indices for distinct machining processes allows finding the most appropriate values of relevant factors definite operations. Several criteria can be used to characterize machinability, such as tool wear, magnitude cutting forces, roughness machined surfaces, or shape chips that are formed during process. One methods studying is based on analysis drilling operations made under constant feed force. A drill press probably readily available device implement an...

Abstract The advancement in control and measuring technologies, the widespread acceptance growing popularity of reverse engineering concept made possibility reproducing objects with unknown specifications an easier task. Although industrial practice offers many methods, this technology is not yet used at its fully potential. This article presents a case study involving application on complex geometry plastic part from automotive industry. aim paper to present step‐by‐step method, starting...

Slots and channels are sometimes necessary in machine building; the surfaces of slots could be obtained by means a laser beam machining equipment. Essentially, material removal from workpiece needs development thermal phenomena melting vaporizing dynamic phenomena, respectively, which melted vaporized is moved zone. The paper includes results researches concerning possibilities to use 1070 nm wavelength equipment whose output power 300 W, order obtain metallic test pieces. sizes parameters...

The electrical dischargemachining (EDM) is known as the machining method in which material removalis result of developing discharges having certain energetic andtemporal characteristics between workpiece and active surface thetool electrode, while a dielectric liquid circulated gap, essentiallyin order to remove debris. last decades showed that conditions,the could be replaced by gaseous fluids, theprocess being named dry EDM. In paper, some preliminary considerations areformulated about...

As consequence of the development electrical discharge machining process, electrode is affected by wear; knowing evolution wear, a better estimation its service life possible. It expected that wear depends on energy discharges and mass electrode. known also nature workpiece material exerts influence wearing process. In paper, some theoretical considerations are used to highlight above mentioned aspects. A set experimental tests was designed developed in order exerted size cross section...

The substantial increase in the use of FDM (Fused Deposition Modeling) process for production plastic parts ever wider fields has led to search methods improve quality printed parts. In case ABS (Acrylonitrile Butadiene Styrene), one most common and used surface is acetone steam treatment, but application this method also brings more or less negative effects on part. main side when applying low breaking strength loss part details sharp edges. This paper presents a set contributions...