Boring and threading
Boring and threading can be carried out in the usual manner for metal. The drill is clamped into place on the metal part to prevent it from slipping. If this is not possible, the SCHWINGMETALL mount should be fixed into place in an appropriate drilling device or with screw clamps. The pretensioning force must be greater than the drilling force.
A deep bit stop is to be used to bore core holes. This ensures that the blind hole thread depth of 15... 20 mm is maintained. A bottoming or plug tap should be used to cut the thread. Lubrication and cooling with an appropriate boring fluid is absolutely essential. Temperatures in excess of 100 °C are not permitted.
Boring of Schwingmetall - clamping
Boring of Schwingmetall - drilling device
The length of the screws should not exceed the thickness of the metal part. They must not protrude into the spring body.
Tiefenanschlag is to be used!
Sawing
Railstrips can be cut to length with the kinds of ribbon or lift saws available commercially. In the case of railstrips with , the pretension force on the sides must be complemented by bracing on top. It is also necessary to lubricate and cool well with a cooling lubricant mixed with water at a ratio of 1:10. Temperatures in excess of 100 °C are not permitted.
Burrs are to be removed after sawing. The bonding quality in the edge zones has to be checked. No sharp-edged objects may be used for this purpose.
