zielsicher Englisch, Metalltechnik, Schulbuch

Explain the following terms. 1. detachable connections the components can be demounted without any damage 2. fixed connections the joint or the fastener is destroyed 3. fasteners screws, pins, rivets, nails, bolts, quick fastening systems 4. joining technologies soldering, welding, gluing, Answer these questions: 1. Are screws reusable? 2. What are washers for? 3. Are pin connections detachable? 4. What are bolts used for? 1. Yes, because they are detachable connections. 2. Washers make an even contact area possible for the bolt/screw head or the nut. 3. Yes, they are detachable connections. 4. Bolts are mainly used for hinge joints or to use in machine components. Name the different classifications by the shape of the head and by the application area. shape of the head application area hexagon head cap bolt – cheese head bolt – countersunk screw – slotted screw with longitud- inal slots – slotted screw with cross slot close tolerance bolts – studbolt – threaded pin – sheet metal screw – thread cutting screw – thread forming bolt – self-tapping drilling screw – wood screw Name the different pins. dowel pin shearing pin fixing pin Name the various fixed connections. soldering rivet connections welding gluing 15 A2 16 A2 17  18 A2 19 A2 What I can now do: ●● I can explain the terms “detachable and fixed connections, fasteners, joining technology”.  ➤ 15 Ich kann die Begriffe „lösbare und unlösbare Verbindungen, Verbindungselemente und die Fügetechniken“ erklären. ●● I can answer questions regarding washers, screws, pins and bolts.  ➤ 16 Ich kann Fragen bezüglich Scheiben, Schrauben, Stifte und Bolzen beantworten. ●● I can name the different screws and bolts and their different shapes.  ➤ 17 Ich kann die verschiedenen Schrauben und Bolzen sowie ihre verschiedenen Formen aufzählen. ●● I can name the different pins.  ➤ 18 Ich kann die verschiedenen Stifte aufzählen. ●● I can name the various fixed connections.  ➤ 19 Ich kann die verschiedenen unlösbaren Verbindungen aufzählen. 26 Joining technology Check yourself 139 Nur zu Prüfzwecken – Eigentum des Verlags öbv