BS ISO 03365:2016 pdf download – Indexable hardmetal (carbide) inserts with wiper edges, without fixing hole — Dimensions
3 Types of inserts
The types of indexable hardmetal (carbide) inserts specified in this International Standard are the following:
— TP … PPN
symmetrical triangular inserts with 11° normal clearance, 90° cutting edge angle, and 11° wiper edge normal clearance;
— TP … PDR; TP … PDL
asymmetrical triangular inserts with chamfered corners, 11° normal clearance, 90° cutting edge angle, and 15° wiper edge normal clearance;
— TE … PER; TE … PEL
asymmetrical triangular inserts with chamfered corners, 20° normal clearance, 90° cutting edge angle, and 20° wiper edge normal clearance;
— SN … ENN
symmetrical square insert with chamfered corners, 0° normal clearance, 75° cutting edge angle,and 0° wiper edge normal clearance;
— SP … EDR; SP … EDL
asymmetrical square insert with chamfered corners, 11° normal clearance, 75° cutting edge angle,and 15° wiper edge normal clearance;
— SN … ANN
symmetrical square insert with 0° normal clearance, 45° cutting edge angle, and 0° wiper edge normal clearance;
— SE…. EER; SE…. EEL
asymmetrical square insert with 20° normal clearance, 75° cutting edge angle, and 20° wiper edge normal clearance.
Inserts with wiper edges, without fixing hole, are standardized only without chip breakers.
4 Interchangeability
4.1 Tolerances
Indexable hardmetal (carbide) inserts specified in this International Standard are provided in the following tolerance classes in accordance with ISO 1832:
a) inserts with 0° and 11° normal clearance (TP, SN, and SP)
tolerance classes A, C, and K, where class C is used mainly for coated inserts;
b) inserts with 20° normal clearance (TE and SE)
tolerance class C.
The values of the tolerances in accordance with ISO 1832 are given in Annex A.
Other tolerances are included in the diagrams and tables with the insert dimensions in Clause 7.
4.2 Dimensions m
Dimension m specified in the tables refers to a theoretically perfect insert. In practice, as the points on which the inserts are located in both manufacturing and measuring may be different, the nominal value of dimension m may vary from one manufacturer to another within a range of ± 0,05 mm. Nevertheless,for inserts of the same manufacturer, dimension m shall comply with the tolerances in accordance with ISO 1832 (see Annex A).
5 Designation and marking
5.1 Designation
The designation of the indexable hardmetal (carbide) inserts complying with this International Standard shall conform to ISO 1832.
In addition to this designation, one or both of the following may be indicated:
— the symbol of the group of application, in accordance with ISO 513;
— the commercial designation of the hardmetal (carbide) grade.
5.2 Marking
The following symbol, at least, shall be marked on the insert itself (except when this would be difficult on the smaller inserts):
— symbol of the group of application or commercial designation of the hardmetal (carbide) grade (or both, if possible, on large inserts).
6 Measurement
Annex B indicates the methods of measuring the dimension m of the indexable inserts covered by this International Standard.
7 Recommended dimensions
The choice of the more common dimensions is restricted to the specifications given in Tables 1 to 12. It is strongly recommended that these standard inserts be used wherever possible.
7.1 Triangular inserts
7.1.1 Symmetrical triangular inserts with 90° cutting edge angle, 11° normal clearance, and 11° wiper edge normal clearance.BS ISO 03365 pdf download.