Cold riveting

Riveting is necessary for a more durable jointing details. Rivets are used in the manufacture of chutes and equipment, attaching umbrella over the holes and vent stacks, etc.
Riveting spend with rivets made of soft metal (copper, aluminum) and is a cylindrical shaft with a head on the end of the mortgage. When rasklepke rod rivets are trailing head. Roofing take rivet diameter is 2 times greater than the thickness of one of the matched parts, and length equal to the thickness of both parts plus 3-5 mm to form the head.
Length by the end of the rivet is selected depending on the shape of the trailing head. At half-round head length by the end of the diameter is 1.5 bar. If the head is flat, the length of the protruding end of the rod should be about 1.1 rod diameters. Riveting can be normal or flat. In conventional riveting rivet heads are above the surface of the item, and when flattened sunk flush with the surface of matched components.
If you connect the parts of the roof are the details of the profiled steel, it is usually used with a diameter of 2.5-3 mm rivets, having mortgages on the side of the head fine detail.
Usually parts spliced one rivet joint, and sometimes two. Studs located at a distance of 3 cm from each other and at a distance of 1.5 from the edge of the rod parts. Rivet holes in the details make the diameter of the rod rivets on quarter. When splicing parts flies, that is, make riveting flush with the details, holes for riveting Zenko (attach hole truncated cone shape) to a depth equal to the height of the head, at an angle of 60-80 °.

Tools for riveting details
Support
Used to set mortgage head. For this surface of the tool, which, when in contact with the head, has a recess in the form of the head.
Hammer
Take a hammer weighing 3 kg. Used when driving a rivet in the hole.

Draft
Necessary to seal matched parts.

Swage
Used for finishing (final form) the closing head.

Description of the riveting
Merging parts begin with the installation of a guideline on the ends of rivets and riveting series at intervals between them.
Riveting, in that order: the regrowth of matched components; marking holes for rivets, drilling holes, laying rivets; sediment matched parts for tight fit them to each other and enclosing the head, finishing with a closing head crimping.
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