Bonding of Arrowheads
DELO-PUR Key Features
- Two-part adhesives in DELO-AUTOMIX cartridges
- Excellent strength with static and dynamic loads
- Ideal for larger bonding areas
- Good tension-equalising properties
For bonding aluminium inserts onto carbon arrowheads, DELO’s two-part Polyurethane adhesives are used because of their high impact resistance. The vibrations induced in the arrow when it hits its (non-human) target put tremendous stress on the joint, so the increased flexibility of Polyurethane adhesives over epoxies compensates for this stress.
Arrows can reach speeds up to 250 Km/h, and decelerate to 0 Km/h instantaneously. In addition, because they can penetrate deeply into the target, a very high tensile force is applied in order to withdraw and re-use the arrow.
Testing of the finished arrows included the following requirements: a) shoot at a 20mm thick plywood target; b) shoot at a 60mm thick wooden target; and c) shoot at a concrete wall to test for rebound strength.
Knowledge Base Articles
Basic Adhesive Types (IKB-041)
How to Choose the Right Adhesive (IKB-035)
All Things Considered (IKB-042)
Explanation of Low Pressure Plasma Cleaning (IKB-014)
Tel: +44 (0)1264 334505
Mechanical Engineering, Metal Bonding, Metal Sealing and Protection
Automotive, Industrial, Electronics, Transport, Marine, Consumer
Available from Inseto in the United Kingdom & Ireland