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ISO 243:2014 pdf free

ISO 243:2014 pdf free.Turning tools with carbide tips – External tools
This International Standard specifies the types and the dimensions of turning tools with carbide tips; it deals only with external tools. It also gives the definition of right-hand and left-hand tools.
The shank sections and the inserts used are selected respectively from those defined in ISO 241 and ISO 242.
NOTE Internal tools are the subject of ISO 514; designation and marking are the subject of ISO 504.
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 241, Shanks for turning and planing tools一Shapes and dimensions of the section
ISO 242, Carbide tips for brazing on turning tools
For the particular case of external tools, only two types of sections are selected from among the various types provided for in ISO 241.
a) the square sectionh= b;
b) the rectangular section with a ratio of h/b = 1,6 approximately.
NOTE The choice between these two sections for any given tool is in accordance with the table for external tools. This choice is based on present- day techniques, but may be subject to revision in the future on the basis of studies to be undertaken by various countries with a view to establishing which type of section is best adapted to its purpose from a technical point of view.
To define whether the direction of a tool is left-hand or right-hand, it is assumed that the tool in question is mounted on its base on a vertical table, with the leading face towards the onlooker and at the bottom. In these conditions, the tool is defined as righthand when its cutting edge is directed towards the right of the onlooker, and as left-hand in the opposite case. See Figure 1.ISO 243 pdf free download.

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