ISO 1302 PDF
ISO (E). PDF disclaimer. This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may. This standard was last reviewed and confirmed in This International Standard specifies the rules for the indication of surface texture in technical product documentation (e.g. drawings, specifications, contracts, reports) by means of graphical symbols and textual indications. International Standard ISO was prepared by Technical Committee ISO/TC , Dimensional and geometrical product specifications and verification.
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Reference: In ISO , a finish allowance is entered at the location of e in Figure 1. ［TECHNICAL DATA］. METHODS OF INDICATING PRODUCT SURFACES. Introducing the main content of DIN ISO , DIN and the comparison of surface roughness values for metal castings by Dandong Foundry in China. Book ID: DyJ67dH98eKbY0m | FREE Download Iso 02 [Book] PDF. Measuring surface roughness mitutoyo, eg scribd.
An aircraft maker contracts with a vendor to make parts. A certain grade of steel is specified for the part because it is strong enough and hard enough for the part's function. The steel is machinable although not free-machining.
The vendor decides to mill the parts.
There is no need to add a second operation such as grinding or polishing after the milling as long as the milling is done well enough correct inserts, frequent-enough insert changes, and clean coolant. The inserts and coolant cost money, but the costs that grinding or polishing would incur more time and additional materials would cost even more than that.
Obviating the second operation results in a lower unit cost and thus a lower price. The competition between vendors elevates such details from minor to crucial importance.
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It was certainly possible to make the parts in a slightly less efficient way two operations for a slightly higher price; but only one vendor can get the contract, so the slight difference in efficiency is magnified by competition into the great difference between the prospering and shuttering of firms. Just as different manufacturing processes produce parts at various tolerances, they are also capable of different roughnesses.
Generally, these two characteristics are linked: manufacturing processes that are dimensionally precise create surfaces with low roughness.
Cleaning of Stainless Steel Tubes Post weld cleaning and finishing of stainless steels Care and maintenance of stainless steel Flag for inappropriate content. Related titles. Jump to Page. Search inside document.
Anonymous bjD4fCi. Saju Xavier. Agarwal Rachit. Karthik Keyan.
Jessica Wiley. Vishal Sharma.
Viteysatya Seng. Mehtab Rai.
Achiaa Osei-Donkor. Albert Hendrico Hutauruk. Pedro Dutra.
Lingga Setiawan. Ivan Gutierrez.
Chup Ala. Bhagyesh Chotaliya. Nicole Keith. Rifki Aulia.
Wiryawan Win. Ahmad Jukliv Pandu Yoedhawan.Sarah Taylor. Sometimes, more than one process must be overlaid to achieve the desired result cost-effectively. Symbol Meaning Explanatory diagram The creases made by an edged tool during machining are parallel with the surface captured in the diagram in which the symbol is written. Symbol without additional indications.
Jump to Page. Prabath Nilan Gunasekara.
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