Manufacturing Process of EP Matrix Composite Rapid Injection Mold and Application Case

2014 ◽  
Vol 1061-1062 ◽  
pp. 460-464
Author(s):  
Yong Di Zhang ◽  
Bin Zhang ◽  
Yan Fang Yue ◽  
Guang Yang
Keyword(s):  
New Product Development ◽  
Manufacturing Process ◽  
Injection Mold ◽  
Layer By Layer ◽  
3D Data ◽  
Rapid Injection ◽  
Development Cycle ◽  
Ep Matrix ◽  
Tooling Technology ◽  
Rotary Switch

The prototype can be produced from RP(Rapid Prototyping) technology directly by 3D data model, by dispersing and accumulating layer by layer principle, so the new product development cycle can be shortened greatly. RT (Rapid Tooling) technology is a new method and technology for rapid manufacturing mold, which is developed from RP technology. In this research, a rotary switch prototype was produced by laser stereolithography (SL) technology. Using the prototype as master pattern , a injection mold was made by metal casting method , using the composite composed of epoxy resin E51, aluminum powder, quartz powder , graphite and others, the manufacturing process was described in detail, and the ABS samples were successfully obtained through trial production in the injection molding machine.

scholarly journals Development and Application of Rapid Injection Molds Using Aluminum-Filled Epoxy Resins for Metal Injection Molding

2021 ◽  
Author(s):  
Chil-Chyuan Kuo ◽  
Xin-Yu Pan ◽  
Cheng-Xuan Tasi
Keyword(s):  
Injection Molding ◽  
Epoxy Resins ◽  
Metal Injection Molding ◽  
Manufacturing Cost ◽  
Injection Mold ◽  
Rapid Injection ◽  
Near Net Shape ◽  
Tooling Technology ◽  
Manufacturing Time ◽  
Conventional Machining

Abstract Metal injection molding (MIM) is a near net-shape manufacturing process combing conventional plastic injection molding and powder metallurgy. Two kinds of injections molds for MIM were developed using conventional mold steel and aluminum (Al)-filled epoxy resins in this study. The characteristics of the mold made by rapid tooling technology (RTT) were evaluated and compared to that fabricated conventional machining method through MIM process. It was found that the service life of the injection mold fabricated by Al-filled epoxy resins is about 1300 molding cycles. The saving in manufacturing cost of an injection mold made by Al-filled epoxy resins is about 30.4% compared to that fabricated conventional mold steel. The saving in manufacturing time of an injection mold made by RT technology is about 30.3% compared to that fabricated conventional machining method.

scholarly journals Blade Segment with a 3D Lattice of Diamond Grits Fabricated via an Additive Manufacturing Process

2020 ◽  
Vol 33 (1) ◽  
Author(s):  
Bin Chen ◽  
Peng Chen ◽  
Yongjun Huang ◽  
Xiangxi Xu ◽  
Yibo Liu ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Service Life ◽  
Manufacturing Process ◽  
Cutting Speed ◽  
Inspection System ◽  
Layer By Layer ◽  
Filling Rate ◽  
Pressure System ◽  
Manufacturing Equipment ◽  
Diamond Blade

Abstract Diamond tools with orderly arrangements of diamond grits have drawn considerable attention in the machining field owing to their outstanding advantages of high sharpness and long service life. This diamond super tool, as well as the manufacturing equipment, has been unavailable to Chinese enterprises for a long time due to patents. In this paper, a diamond blade segment with a 3D lattice of diamond grits was additively manufactured using a new type of cold pressing equipment (AME100). The equipment, designed with a rotary working platform and 16 molding stations, can be used to additively manufacture segments with diamond grits arranged in an orderly fashion, layer by layer; under this additive manufacturing process, at least 216000 pcs of diamond green segments with five orderly arranged grit layers can be produced per month. The microstructure of the segment was observed via SEM and the diamond blade fabricated using these segments was compared to other commercial cutting tools. The experimental results showed that the 3D lattice of diamond grits was formed in the green segment. The filling rate of diamond grits in the lattice could be guaranteed to be above 95%; this is much higher than the 90% filling rate of the automatic array system (ARIX). When used to cut stone, the cutting amount of the blade with segments made by AME100 is two times that of ordinary tools, with the same diamond concentration. When used to dry cut reinforced concrete, its cutting speed is 10% faster than that of ARIX. Under wet cutting conditions, its service life is twice that of ARIX. By applying the machine vision online inspection system and a special needle jig with a negative pressure system, this study developed a piece of additive manufacturing equipment for efficiently fabricating blade segments with a 3D lattice of diamond grits.

Evaluation of Parts Produced by a Novel Additive Manufacturing Process

2013 ◽  
Vol 315 ◽  
pp. 63-67 ◽  
Author(s):  
Muhammad Fahad ◽  
Neil Hopkinson
Keyword(s):  
Additive Manufacturing ◽  
Rapid Prototyping ◽  
Manufacturing Process ◽  
High Speed ◽  
Three Dimensional ◽  
Coordinate Measuring Machine ◽  
Layer By Layer ◽  
Nylon 12 ◽  
Measuring Machine ◽  
End Use

Rapid prototyping refers to building three dimensional parts in a tool-less, layer by layer manner using the CAD geometry of the part. Additive Manufacturing (AM) is the name given to the application of rapid prototyping technologies to produce functional, end use items. Since AM is relatively new area of manufacturing processes, various processes are being developed and analyzed for their performance (mainly speed and accuracy). This paper deals with the design of a new benchmark part to analyze the flatness of parts produced on High Speed Sintering (HSS) which is a novel Additive Manufacturing process and is currently being developed at Loughborough University. The designed benchmark part comprised of various features such as cubes, holes, cylinders, spheres and cones on a flat base and the build material used for these parts was nylon 12 powder. Flatness and curvature of the base of these parts were measured using a coordinate measuring machine (CMM) and the results are discussed in relation to the operating parameters of the process.The result show changes in the flatness of part with the depth of part in the bed which is attributed to the thermal gradient within the build envelope during build.

scholarly journals The Art of Tungsten Etching in Semiconductor Chips

1999 ◽  
Vol 7 (2) ◽  
pp. 24-25
Author(s):  
Lisa Litz-Montanaro
Keyword(s):  
Manufacturing Process ◽  
Chemical Etching ◽  
Layer By Layer ◽  
Ion Milling ◽  
Etching Technique ◽  
Semiconductor Structures ◽  
Wet Chemical ◽  
Wet Chemical Etching ◽  
Semiconductor Chips ◽  
Complex Semiconductor

In the course of both physical and failure analysis of semiconductor chips (i.e., verifying what you actually deposited as a layer, vs, what caused the circuit to fail), it is essential to have appropriate deprocessing tools at your disposal in order to evaluate complex semiconductor structures, Deprocessing techniques are developed for each product manufactured and involve multi-step procedures that reveal the layer-by-layer secrets of the chip, These techniques require constant tweaking in duration and procedure as the manufacturing process imposes changes and as the architecture of the semiconductor changes. While there are many tools that assist in these analytical pursuits, such as RIE (reactive ion etching - a dry etching technique), ion milling, and microcleaving, the wet chemical etching of tungsten is sometimes more reproducible than RIE techniques.

Constraints and limitations of concrete 3D printing in architecture

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Chien-Ho Ko
Keyword(s):  
3D Printing ◽  
Manufacturing Process ◽  
Computer Aided Design ◽  
Research Approach ◽  
Layer By Layer ◽  
Content Type ◽  
Improve Design ◽  
Study Results ◽  
Computer Aided ◽  
Property Control

Purpose Additive manufacturing of concrete (AMoC) is an emerging technology for constructing buildings. However, due to the nature of the concrete property and constructing buildings in layers, constraints and limitations are encountered while applying AMoC in architecture. This paper aims to analyze the constraints and limitations that may be encountered while using AMoC in architecture. Design/methodology/approach A descriptive research approach is used to conduct this study. First, basic notions of AMoC are introduced. Then, challenges of AMoC, including hardware, material property, control and design, are addressed. Finally, strategies that may be used to overcome the challenges are discussed. Findings Factors influencing the success of AMoC include hardware, material, control methods, manufacturing process and design. Considering these issues in the early design phase is crucial to achieving a successful computer-aided design (CAD)/computer-aided manufacturing (CAM) integration to bring CAD and CAM benefits into the architecture industry. Originality/value In three-dimensional (3D) printing, objects are constructed layer by layer. Printing results are thus affected by the additive method (such as toolpath) and material properties (such as tensile strength and slump). Although previous studies attempt to improve AMoC, most of them focus on the manufacturing process. However, a successful application of AMoC in architecture needs to consider the possible constraints and limitations of concrete 3D printing. So far, research on the potential challenges of applying AMoC in architecture from a building lifecycle perspective is still limited. The study results of this study could be used to improve design and construction while applying AMoC in architecture.

Improvement of Surface Layer Formation Technology for Articles Produced by Layer-by-Layer Laser Sintering

2013 ◽  
Vol 379 ◽  
pp. 56-59 ◽  
Author(s):  
N.A. Saprykina ◽  
A.A. Saprykin
Keyword(s):  
Surface Layer ◽  
Powder Material ◽  
Copper Powder ◽  
Manufacturing Process ◽  
Laser Sintering ◽  
Layer By Layer ◽  
Layer Formation ◽  
Mathematical Relation ◽  
Surface Layer Formation

Mathematical relation between roughness of the surface layer of the sintered article and layer-by-layer laser sintering modes obtained from experiments conducted using copper powder material PMS-1. Authors suggest that split manufacturing process of an article and its inner part must be split to roughing, semi-finishing and finishing modes.

Leanness assessment of organizational performance: a systematic literature review

2018 ◽  
Vol 29 (5) ◽  
pp. 768-788 ◽  
Author(s):  
Narpat Ram Sangwa ◽  
Kuldip Singh Sangwan
Keyword(s):  
Literature Review ◽  
Organizational Performance ◽  
New Product Development ◽  
Systematic Literature Review ◽  
Manufacturing Process ◽  
Lean Manufacturing ◽  
English Language ◽  
Manufacturing Sector ◽  
Content Type ◽  
Lean Assessment

Purpose The purpose of this paper is to review various themes of leanness, leanness assessment approaches, leanness assessment areas, and their evolution by a systematic literature review (SLR). Design/methodology/approach The eight types of literature review methodologies are identified and compared. The SLR is selected after critically analyzing the eight types of literature reviews. A four-phased SLR (i.e. plan, do, analyze/synthesize, and propose) has been carried out based on the peer-reviewed journal and conference articles on leanness assessment. Findings The existing literature on leanness assessment shows the lack of review-based papers on lean assessment. This study attempts to build a two-fold contribution to the field of leanness assessment: first, various types of themes, approaches, and assessment areas are identified; second, a framework for leanness assessment is proposed. The study shows that the research on leanness assessment is mainly empirical using qualitative judgment. The paper traces the changes in scope, areas, and approaches to leanness assessment. The scope of leanness assessment broadened from manufacturing process assessment to whole supply chain assessment including manufacturing process. The focus of earlier assessment was manufacturing and financial areas which now includes human resource, administration, new product development, suppliers, and customers also. Tool and technique based assessment has given way to outcome-based assessment using non-financial and qualitative parameters. Research limitations/implications One of the limitations of the study is that literature search was mainly focused on peer-reviewed articles published in English language only; therefore, some papers in others languages may have been missed. Apart from this, the SLR has been conducted for the manufacturing sector only. Practical implications The study is expected to be useful for the lean practitioners to identify the causes of reported lean failures. Moreover, the authors also expect that the conducted SLR will provide the passage to the practitioners for not only fostering the concepts on leanness assessment but also provide the vital and significant knowledge about the leanness assessment to the managers for enhancing organizational performance. Originality/value As per the authors’ knowledge, this is the first SLR on leanness assessment. It is expected that this paper will help the researchers working in the area of lean manufacturing to identify new areas of research.

scholarly journals Digital Design as a Key Approach to Shortening MEMS Development Cycle

2020 ◽  
Vol 35 ◽  
pp. 01003
Author(s):  
Mihail M. Androniс ◽  
Ilya A. Rodionov ◽  
Yurii B. Tsvetkov
Keyword(s):  
Comparative Analysis ◽  
Product Development ◽  
Knowledge Base ◽  
New Product Development ◽  
Mechanical Engineering ◽  
New Product ◽  
Digital Design ◽  
Structural Elements ◽  
Development Cycle ◽  
Digital Modeling

A comparative analysis of new product development principles in microelectronics, mechanical engineering, and MEMS production is carried out. A MEMS integrated digital modeling approach is proposed based on the formation of a knowledge base, including a description of basic structural elements and basic tested process sequences for their manufacture.

Accelerating Production Readiness Using Lean Product Development

2009 ◽  
Author(s):  
Michael J. Parsons ◽  
Nicholas M. Josefik
Keyword(s):  
Product Development ◽  
New Product Development ◽  
Lean Manufacturing ◽  
Scale Up ◽  
New Product ◽  
Time To Market ◽  
High Performing ◽  
Lean Product Development ◽  
Value Stream ◽  
Development Cycle

Lean manufacturing and accelerated product development, two forces when combined into lean product development, can accelerate time-to-market and manufacturing scale-up, achieving production readiness in the shortest possible time. This paper presents what is possible when the two underlying themes of lean manufacturing and new product development unite with the orchestrated chaos of a high performing team. A benchmark value stream has been documented along with product development cycle time examples ranging from 4 to 16 months for concept-to-production readiness.

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