There are many different metals used in model making with different requirements for machining, forming and bonding/welding.
I needed to make some long double ended bolts for a friend who’s restoring a motorbike. After some searching we decided on EN8: EN8 Engineering Steel is an unalloyed carbon steel with reasonable tensile strength. [more…]
An iron-based alloy containing carbon, and other alloying elements eg manganese. Steel contains anywhere between 0.2% carbon for soft wire and sheet steel and 1.5% carbon for cutting tools. A work in progress as I [more…]
Abbreviated HSS and commonly just listed or desicribed as HSS. A hard steel used for metal cutting tools as it remains hard even at dull red temperatures. It normally contains: Tungsten 12 to 18%, Chromium [more…]
The image shows a pewter flywheel on a solenoid engine. The outer surface has a hammered finish. Traditionally pewter is an alloy containing 80% tin and 20% lead. Modern pewter is 85 to 95% tin with [more…]
Cast iron tends to be brittle, except for malleable cast irons. With its low melting point, good fluidity, castability, excellent machinability and wear resistance, cast irons have become an engineering material with a wide range [more…]
The recommended cutting speed for silver steel is 15 to 25m/min Using this speed I’ve created the following table of cutting speeds: Diameter of material [mm] Spindle speed [rpm] Roughing Spindle speed [rpm] Finishing 3 [more…]
Nowadays tools are often referred to as being made from “carbide” – what they actually mean is Tungsten Carbide. The reason for using Tungsten Carbide is it has some great properties: melting point 2,785–2,830°C hardness of [more…]