scholarly journals Blindstitch machines for men suit manufacturing: Part 2

2021 ◽  
Vol 69 (3) ◽  
pp. 41-46
Author(s):  
Ineta Nemeša
Keyword(s):  
Manufacturing Process ◽  
Work Process ◽  
3D Shape ◽  
Industrial Manufacturing ◽  
The Face ◽  
High Work ◽  
Face Side ◽  
Process Productivity

Different blindstitch machines are used in men suit industrial manufacturing process to replace traditional manual sewing techniques and ensure high work process productivity. The waistband of the trousers is felled with special machines of stitches 103. Beltloop machines process double-folded belt loops for trousers with or without inserted tape. To create 3D shape to lapels and collars of jacket padding machines are used. Spot tacking machines fix together two or more layers of fabric with stitches invisible on the face side of the garment. Machines for felling undercollars create V-shaped zig-zag stitches 314. Two kind of machines are used to fell the lining in the armhole and bottom of the sleeve. Blindstitch machines for certain technological operations are manufactured by companies: Strobel, Maier, Japsew, Global, others.

Material Selection for CFRP-Aluminium-Foam-Sandwiches Manufactured by a PUR Spraying Process

2017 ◽  
Vol 742 ◽  
pp. 317-324
Author(s):  
Peter Rupp ◽  
Peter Elsner ◽  
Kay André Weidenmann
Keyword(s):  
Manufacturing Process ◽  
Sandwich Structures ◽  
Bending Stiffness ◽  
Effective Density ◽  
Sandwich Composites ◽  
Open Cell ◽  
The Core ◽  
Bending Modulus ◽  
The Face ◽  
Spraying Process

Sandwich structures are ideal for planar parts which require a high bending stiffness ata low weight. Usually, sandwich structures are manufactured using a joining step, connecting theface sheets with the core. The PUR spraying process allows to include the infiltration of the facesheet fibres, the curing of the matrix and the joining of the face sheets to the core within one processstep. Furthermore, this manufacturing process allows for the use of open cell core structures withoutinfiltrating the core, which enables a comparison of different material configurations, assembled bythe same manufacturing process. The selection of these materials, with the aim of the lowest possiblemass of the sandwich composite at a constant bending stiffness, is displayed systematically within thiswork.It could be shown that the bending modulus calculated from the component properties matched theexperimentally achieved values well, with only few exceptions. The optimum of the bending modulus,the face sheet thickness and the resulting effective density could be calculated and also matched theexperimental values well. The mass-specific bending stiffness of the sandwich composites with corestructures of open cell aluminium foams was higher than with closed cell aluminium foams, but wasexceeded by sandwich composites with Nomex honeycomb cores.

Conformal Optimization Algorithm for Undevelopable Surfaces and its Application

2014 ◽  
Vol 602-605 ◽  
pp. 3570-3574
Author(s):  
Zhen Hua Luo ◽  
Fen Jiang
Keyword(s):  
Approximation Algorithms ◽  
Optimization Algorithm ◽  
Manufacturing Process ◽  
Research Topic ◽  
Important Research ◽  
Computer Aided Geometric Design ◽  
Industrial Manufacturing ◽  
Important Research Topic ◽  
Computer Aided ◽  
Planar Materials

In the industrial manufacturing process, most kinds of surfaces are processed by planar materials, but undevelopable surfaces are difficult develop to the plane. The approximation algorithms to develop a undevelopable surface is an important research topic in Computer Aided Geometric Design (CAGD). In this paper, we propose a new approximation algorithms based optimization algorithm. We guarantee the deformation vector make the minimum changes during the developing process. In the paper, some numerical example are given and the can illustrate the our method is effective.

Assessing Water Consumption of S-PVC Resin Manufacturing Process by Life Cycle Assessment

2014 ◽  
Vol 931-932 ◽  
pp. 619-623
Author(s):  
Sun Olapiriyakul
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Water Resources ◽  
Water Use ◽  
Manufacturing Process ◽  
Eastern Region ◽  
Industrial Manufacturing ◽  
Sustainable Water Resources Management ◽  
Local Water

The rapid growth of industry has resulted in increased severity of water scarcity in the Eastern region of Thailand over the past decade. The assessment of water use by industrial manufacturing processes located in areas experiencing water stress is necessary to ensure a sustainable water resources management. The objective of this study is to demonstrate the use of life cycle assessment as a tool for assessing water use in an industrial manufacturing process. A case study of S-PVC resin manufacturing process located in Map Ta Phut Industrial Estate, Rayong province, Thailand, is presented. The studying results indicate that the amount of water used to produce 1 Kg of S-PVC resin is 14.72 liters, of which 6.22 liters are withdrawn from local water resources. Additionally, the direct and indirect water use along the production supply chain is accounted for in a streamlined life cycle assessment.

Clustering of water molecules on model soot particles: an ab initio study

2005 ◽  
Vol 1 (4) ◽  
pp. 277-287 ◽  
Author(s):  
B. Collignon ◽  
P.N.M. Hoang ◽  
S. Picaud ◽  
J.C. Rayez
Keyword(s):  
Water Adsorption ◽  
Water Molecules ◽  
Quantum Calculations ◽  
Soot Particles ◽  
Small Water ◽  
Graphite Crystallite ◽  
The Face ◽  
Oniom Approach ◽  
Face Side

Clustering of water molecules on model soot particles is studied by means of quantum calculations based on the ONIOM approach. The soot particles are modeled by anchoring OH or COOH groups on the face side or on the edges of a graphite crystallite of nanometer size. The quantum calculations aim at characterizing the adsorption properties (structure and adsorption energy) of small water aggregates containing up to 5 water molecules, in order to better understand at a molecular level the role of these OH and COOH groups on the behavior with respect to water adsorption of graphite surface modelling soot emitted by aircraft.

Effects of Seating Positions on Heart Rates, State Anxiety, and Estimated Interview Duration in Interview Situations

2003 ◽  
Vol 93 (3) ◽  
pp. 755-770 ◽  
Author(s):  
Eiko Osato ◽  
Nobuya Ogawa
Keyword(s):  
State Anxiety ◽  
Junior College ◽  
Heart Rates ◽  
Face To Face ◽  
The Face ◽  
Face Side

This study examined the effects of three seating positions, face-to-face, side-by-side, at right-angles, on participants' heart rates, anxiety, and estimated duration of interview. The subjects were 84 students in a women's junior college who were divided into two groups, classmates and nonclassmates. The experiment used the three seating positions in each of the two groups during the interviews. Heart rates, anxiety scores, and estimated duration of interview were measured. There was a significant effect in different seating positions on the heart rates among the participants. The results suggest that the face-to-face seating produces increased arousal compared to the side-by-side and right-angled seating positions. However, this arousal seems to be more important among classmates than nonclassmates. The results and implications are discussed.

scholarly journals Numerical Investigation of the Hydrodynamic Performance of the Propeller Behind the Ship with and Without Wed

2020 ◽  
Vol 27 (4) ◽  
pp. 50-59
Author(s):  
Alireza Nadery ◽  
Hassan Ghassemi
Keyword(s):  
Pressure Pulse ◽  
Wake Flow ◽  
Hydrodynamic Performance ◽  
Analysis Software ◽  
Experiment Method ◽  
The Face ◽  
Computational Fluid Dynamics Cfd ◽  
Propeller Performance ◽  
Thrust And Torque ◽  
Face Side

AbstractThe presented paper numerically carries out the investigation of the hydrodynamic performance of the propeller behind the ship with and without wake equalizing duct (WED). It is mounted in front of the propeller in order to equalize the ship’s wake flow and improve the propeller performance. The computational fluid dynamics (CFD) analysis software STAR-CCM solver was adopted to simulate the KP505 propeller behind the KRISO container ship (KCS) using overlapping grid technology and user-defined functions. To obtain the effect of a –duct on propeller performance, the ship bare hull case, the with-propeller case, and the with-propeller-and-duct case are also computed. Together, these computations provide for a –complete CFD comparison of the duct effects. Also, the Taguchi design of the experiment method is applied to investigate three parameters (angle of attack, trailing edge radius, and chord length) of the duct. Finally, the main dimensions are obtained, and the thrust and torque coefficients are presented and discussed for one blade and whole blades during one cycle. Based on the numerical results, it is indicated that good design increases efficiency by 1.67%, and a –bad design may reduce efficiency by 3.25%. Also, the effect of the WED caused to decrease the pressure pulse by 35.9% in the face side of the propeller blade.

scholarly journals THE STONE FINIAL-DISCFROM THE LATE MESOLITHIC LAYER AT BEREGOVAYA II IN THE MIDDLE TRANSURALS REGION

2020 ◽  
Author(s):  
С.Н. Савченко ◽  
М.Г. Жилин
Keyword(s):  
Bronze Age ◽  
Peat Bog ◽  
The Face ◽  
Distinguishing Features ◽  
Late Mesolithic ◽  
The Bronze Age ◽  
Face Side

При раскопках стоянки Береговая II на Горбуновском торфянике в Зауралье в слое позднего мезолита был найден перфорированный диск-навершие из тальк-хлоритовой горной породы. На лицевой стороне диска грубой шлифовкой моделирован выступающий нос, гравировкой показаны брови, усы и борода личины. Отверстие для рукоятки в центре расположено на месте рта. Всего в Зауралье известно 4 крупных перфорированных диска, которые исследователи относили к эпохе бронзы и интерпретировали как диски-календари. Отличительные черты нашего диска позволяют считать его скорее навершием ритуального оружия типа булавы. Находка подобного артефакта в четких стратиграфических условиях – в культурном слое позднего мезолита стоянки Береговой II – и сходство отдельных деталей антропоморфной личины на диске с деталями лица Большого Шигирского идола доказывают гораздо более раннее их бытование в Среднем Зауралье. The excavations at the Beregovaya II site in the Gorbunovo peat-bog in the Transurals yielded a perforated end-piece disc made from talc chlorite rock. The face side of the disc features a protruding nose made by rough grinding, whereas the brows, the moustache and the beard of the human-like mask are rendered by engraving. There is a shaft-hole in the center where there should be the mouth. Totally four large perforated discs referred by researchers to the Bronze Age and interpreted as calendar discs that are known in the Transurals region. The distinguishing features of this finial-disc suggest that, most likely, it was a part of a ceremonial weapon such as a macehead. The find of this artifact in the clear stratigraphic context of the Late Mesolithic occupation layer at Beregovaya II and similarity between some parts of the anthropomorphic human-like mask on the disk and the face of the Big Shigir idol is an evidence that such discs were used in the Middle Transurals much earlier.

scholarly journals THE EFFECT OF ALTERNATIVE CUTTER PATHS ON FLATNESS DEVIATIONS IN THE FACE MILLING OF ALUMINUM PLATE PARTS

2018 ◽  
Vol Vol.18 (No.1) ◽  
pp. 81-88 ◽  
Author(s):  
Michal DOBRZYNSKI ◽  
Daniel CHUCHALA ◽  
Kazimierz A. ORLOWSKI
Keyword(s):  
Manufacturing Process ◽  
Face Milling ◽  
Aluminum Plate ◽  
Piezoelectric Elements ◽  
The Face ◽  
Measuring Machine

In this paper the relationships between the alternative machining paths and flatness deviations of the aluminum plate part, were presented. The flatness tolerance of the main surface of the plate part has crucial meaning due to the assembly requirement of piezoelectric elements on the radiator. The aluminum bodies under investigation are the base part of the radiators with crimped feathers for the train industry. The surface of the aluminum plate part was milled using three different milling strategies: along of longer or shorter side of workpiece and at an angle of 45°. The aluminum bodies were machined on milling centre ecoMILL 70 DMG MORI. The flatness deviation measurements were carried out on the Coordinated Measuring Machine Altera 7.5.5 Nikon Metrology NV. These measurements were made during the manufacturing process of the radiator, namely after machining, however, before the process crimping of feathers. The results that were obtained enables the validation of assumed milling path strategies in connection of the subsequent machining and assembly processes.

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