The history of the lathe dates back to 4,000 BC. to the so-called string drills. In the Middle Ages, a water wheel was used as a power source. Leonardo da Vinci is considered to be the creator of the prototype designs of various modern technological machines, including lathes. Throughout the centuries, manufacturing techniques have not…
The technological process route is also referred to as the production route, in other words, a work plan, a detailed structured description of activities within the technological process. A technological process route describes the sequence of actions necessary to produce a part, machine or device. The full description of the production route includes the individual…
Academic experience led to a return to the topic of developing a blank design as a casting. The selection of the casting mold division plane and the orientation of the casting, determination of the grade of allowance and accuracy class as well as the selection of foundry slopes are the main tasks of developing a…
As I wrote in the article Hadfield Steel, prison steel, milling, the aforementioned steel grade is difficult to machine. This is due to the specific austenitic properties of high manganese steels (Hadfield steels). These steels have very high tensile strength (from 350 to 900 MPa), which increases even to 2000 MPa (2 GPa). The increase…
Previous post from the series: Technological process of sleeve, part 4 – drilling. Technological operation 40 – boring Figure 1 shows a technological sketch for the technological operation in question – boring a hole. According to the principles of the technical sketch, very thick lines mean surfaces machined in a given technological operation. Cut…
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Previous post from the series: Technological process of sleeve, part 3. Operation 30 – drilling Figure 1 shows a technological sketch for this technological operation – drilling through holes. According to the principles of the technical drawing, very thick lines mean surfaces machined in a given technological operation. Cut No.: Description of the technological…
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Previous post in the series: Technological process of sleeve, part 1. In the entry Sleeve – framework process – forging, a blank design is presented as forging. This project applies as part of the framework technological process discussed first, using conventional machine tools. The design of the blank as a forging can be developed as…
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The standard of technological times (norm time) – determined at the end of the traditionally developed technological process. The general definition defines the standard of machining time as the amount of time necessary to carry out specific activities in given organizational and technical conditions, by a defined number of employees. Providing for [4] the norm of…
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Class parts bush and disk (sleeve and disk) are characterized by the fact that the most common are external and internal cylindrical surfaces. Quotient value (hole length to its diameter): means that the part is a sleeve (bush). If: means that the part is a disk type. In the case of…
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Previous entry in the series: Technological process of sleeve, part 2 Operation 20 Figure 1 shows a technological sketch for this technological operation. According to the principles of technical drawing, very thick lines mean surfaces machined in a technological operation. Cut No.: Description of the technological cut: 1 Facing. 2 Turn Ø110,5-0,1 3 Chamfer…
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Technological process of sleeve – a series of entries under the technological preparation of the production process of the part of the sleeve class (including sleeve – general process – forging, Sleeve – technological process, introduction) has been continued. This entry is the first part of the example technological process of the sleeve. The selected…
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During his studies, then working at F.W.P. VIS S.A. basically, there was no documentation other than paper. The implementation of the CAD program was under way. Today, PLM and PDM systems (Product Lifecycle Management and Product Design Management) enable significant improvement in production management, including synthesis, flow, updating of technological documentation – as one of…
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Workpiece – the object of work, which after the technological process has been completed, after all the provided treatments have been completed (change of shape, dimensions, surface and material properties) is the final product (part, machine or device). Workpieces are manufactured using various methods depending on the production volume. The blank is identified with the…
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