BS EN 1559-4:2015 pdf download

BS EN 1559-4:2015 pdf download.Founding – Technical conditions of delivery Part 4: Additional requirements for aluminium alloy castings.
BS EN 1559-4 specifies the additional technical delivery conditions for aluminium alloy castings unless other conditions have been agreed at the time of enquiry and order.
This European Standard retains the same structure and numbering systen as used in EN 1559-1 and repeats the numbering of clauses and sub-clauses even if nothing extra or different has been added. It also indicates items specific to aluminium alloy castings under existing or new headings.
2 Normative references
The following documents, in whole or in part, are normahvely 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.
EN 1371-1, Founding — Liquid penetrant testing — Part 1: Sand, gravity die and low pressure die castings
EN 1559-1, Founding — Technical conditions of deliver,’ — Part 1: Genera!
EN 1706. Aluminium and aluminium alloys — Castings — Chemical composition and mechanical properties
EN 12681, Founding — Radiographic examination
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1559-1. in the applicable material standard and the following apply.
3.1 excavation
cavity produced by the removal of cast material prior to subsequent welding (or other finishing methods)
4 Information to be supplied by the purchaser
4.1 Mandatory information
4.2 Optional information
4.3 Drawing, patterns and tools
4.4 Information on the mass
4.5 Preliminary sample
4.6 Initial sample
If required, a minimum of two initial samples shall be supplied to the purchaser for approval. If these initial samples are accepted, one shall be retained by the purchaser and one returned to the manufacturer marked as “approved”.
Supplementary initial samples (one for metallurgical and the other for dimensional purposes) should be retained either by the manufacturer or by the purchaser.
NOTE Testing of initial samples by the manufacturer can be agreed.
5Designations
6Manufacture
6.1Manufacturing process
6.2 Welding operations
6.2.1General
6.2.2 Production welding.
◆Production welding is pemitted, unless otherwise agreed at the enquiry and order stage. For railway applications, production welding has to be agreed separately (see EN 15085-2).
◆Actions to finish castings or eliminate casting imperfections may include the use of a fller metal deposited by a suitable welding process or the insertion of a machined piece secured by welding.
The manufacturer’s and purchaser’s attention is drawn to the need for approved procedures and suitably qualified welders (see EN ISO 15614-4, for finishing welding).
After preparing the casting for finishing welding, the excavation can be classified in accordance with the procedure given in Annex A.BS EN 1559-4 pdf download.