zielsicher Englisch, Metalltechnik, Schulbuch

Name three types of twist drill. 1. for soft steel, grey cast iron, stainless steel 2. for hard and rough materials such as high strength steel, laminated plastic 3. for soft materials such as aluminium-, copper- and zinc-alloy Name the application ranges for countersinking. What is the purpose of reaming? Countersinking: deburring, taper countersinking, cylindrical countersinking Reaming: improves the surface quality of a drilled hole, the dimensional and geometrical accuracy Name some materials of saw blades. tool steel alloys, high-speed steels, sintered materials, hard metal tipped saw blades Name the difference between a milled file and a cut file. What materials are suited to the different cuts. Milled file: positive chip angle, large chip holes, for soft materials materials: aluminium, synthetic materials Cut file: negative chip angle, small chip holes, for harder materials materials: steel, grey cast iron What is the main difference between a turning lathe and a milling machine? What is the use of a grinding machine? The difference is the shape of the components. Flat materials are worked on a milling machine. Round materials are manufactured on a turning lathe. A grinder sharpens tools and smoothes the surface. 09 A2–B1 10 A2–B1 11 A2 12 A2 13 A2–B1 What I can now do: ●● I can name three types of twist drill and their application ranges.  ➤ 09 Ich kann die drei verschiedenen Arten eines Spiralbohrers und ihre Anwendung benennen. ●● I can name the application ranges of countersinking. I know the purpose of reaming.  ➤ 10 Ich kann die Anwendungsgebiete für Senken benennen bzw. was der Sinn des Reibens ist. ●● I can name the materials saw blades are made of.  ➤ 11 Ich kann die Materialien von Sägeblättern benennen. ●● I can name the difference between a milled file and a cut file.  ➤ 12 Ich kann den Unterschied zwischen einer gefrästen und einer gehauenen Feile benennen. ●● I can tell the main difference between a turning lathe and a milling machine, as well as the purpose of a grinding machine.  ➤ 13 Ich kann den Unterschied zwischen einer Dreh- und Fräsmaschine sowie den Zweck einer Schleifmaschine erklären. 14 Cutting operations with machines and by hand Check yourself 77 Nur zu Prüfzwecken – Eigentum des Verlags öbv