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Blanking is one of the advanced technologies of processing materials and manu-facturing products. Simple cutting is affected by the uneven action of plastic de-formation. This makes the cut surface irregular. Blanking methods have been im-proved and new technologies in the process of blanking have been developed. Using these technologies we easier achieve higher geometric precision and surface quality...
Praca prezentuje znaczenie wykonywania analizy wieloosiowego stanu naprężenia i odkształcenia. Scharakteryzowano metodę i modele stosowane do analizy wieloosiowego rozciągania materiałów elastycznych. Różnorodność metod i modeli jest wynikiem braku odpowiednich unormowań. Z zaprezentowanych modeli oceny obciążeń i odkształceń wykorzystano model tarczowy z wycięciami. Jako materiał do badań użyto próbkę...
W pracy zaprezentowano wyniki badań wpływu odkształcenia materiału w procesie walcowania wzdłużnego na właściwości mechaniczne i strukturę stali nie-rdzewnej 40HNMA. Metoda walcowania wzdłużnego jest jedną z nowoczesnych metod dokładnej obróbki plastycznej wałków. Polega na stopniowym kształtowaniu wałków za pomocą rolek kształtowych. Rolki posiadają część cylindryczną, której zadaniem jest przenoszenie...
The problem with obtaining high efficiency screening process in the coal, metal mining, building and other industries lead to invent new constructions of the screeners. The rapid progress of screening techniques and screen design was observed in the past and nowadays the development of screen is stabilized and most of equipment produced by various machines companies is very similar. In spite of this,...
This article presents the grinding tools designed to serve hybrid machining process – ultrasonic wheel vibration assisted grinding. It describes possibilities of using of different abrasives, grinding wheel clamping systems and holders with ultrasonic oscillation inductor. Realization of Ultrasonic Assisted Grinding (UAG) process is possible on machines with special design. Most machine tools are...
This paper presents a model for cusp height in the ball-end milling process. In many milling operations, the cutting tool performs step over and makes adjacent cuts to complete machining of any feature. As a result, a small cusp of material, called a cusp height, will remain between these cuts on the surrounding walls or on the machined surface if a ball-end mill is used. This procedure presents application...
Łącznik jest dyfuzorem wylotowym kanału przepływowego sprężarki odśrodkowej, w którym następuje zmiana kierunku przepływu z promieniowego na kierunek wyznaczony przez oś rurowej komory spalania. Liczba łączników jest równa liczbie indywidualnych komór spalania. W pracy przedstawiono metodę wyznaczania parametrów strumienia w przekroju wyjściowym układu wylotowego sprężarki promieniowej. Analiza obejmuje...
In modern manufacturing industry it is essential to produce under low costs and high quality of products in a short time. This is possible by selecting the cutting parameters in order to achieve high accuracy and low processing time. Usually the desired cutting parameters are determined based on experience or by use of various handbooks but the cutting tool capability is not fully employed. The tool...
A variety of cast iron and steel grades are used for manufacturing dies in stamping industry. The costs of these materials may vary considerably. However, with appropriate surface treatments, coatings and lubricants, a cost-effective die material may outperform the expensive ones. Therefore, in selecting die materials, a systematic evaluation of tool materials, coatings and heat treatments are required,...
Many assembly processes in mechanical production systems have high share of manual operations. These manual operations can have big influence on final time and quality of production. Because the work is realized by human it is very important to take in account human properties and design the operation in way which will eliminate – mistakes and errors. To achieve this it is possible to use Poka-Yoke...
This paper presents the results of a study evaluating the influence of path generation strategy of Fused Deposition Modeling (FDM) prototypes on mechanical properties of material. Several scientific studies were researching the problematic of path generation and internal structure of FDM prototypes. Mostly the influence on mechanical properties was observed. The presented study focuses on assessment...
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