Bronze Alloy

glanze tools and phosphor bronze

Bronze alloy is a yellow to yellow-brown alloy that contains mostly copper and tin. However, the name is now applied to other alloys that do not contain tin. Bronze was developed in Mesopotania around 2500BC. Bronze is ductile, resistant to salt water, has a hard low friction surface and does not generate sparks when hit. … Read more

Cast Iron Dust

cast iron dust

Sometimes when I machine cast iron the next day I have an upset stomach, this made me wonder whether cast iron dust is a health issue and I should be wearing a mask. Machining Cast Iron I machine cast iron without any cutting fluid and use tungsten carbide tools with a shallow angle. The result … Read more

Durafix Easy Weld

durafix easy weld

If you want to weld aluminium then you really need a TIG welder… Some jobs are not suitable for TIG welding and a soldering or brazing would be more useful where you can flood a volume with metal. The example here is the bracket that supports the table on my miniature pillar drill. I originally … Read more

Phosphor Bronze

Phosphor bronze is an alloy of copper with 3.5 to 10% of tin and a significant phosphorus content of up to 1%. The phosphor bronzes have superb spring qualities, high fatigue resistance, excellent formability and solderability, and high corrosion resistance. PB1 is a continuously cast product used for machined components washers and bushes. PB2 This … Read more

EN8 Steel

EN8 steel round rods

I needed to make some long double ended bolts for a friend who’s restoring a motorbike. After some searching we decided on EN8 Steel: EN8 Engineering Steel is an unalloyed carbon steel with reasonable tensile strength. It can be flame or induction hardened and is a readily machinable material. When heat treated, EN8 offers moderate … Read more

Steel and it's Application

silver steel rod

A page around the subject of steel and it’s application allows me to bring information together and help to build on a knowledge base. Steel is 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. … Read more

High Speed Steel

high speed steels

High Speed Steel, abbreviated HSS and commonly just listed or described as HSS. A hard steel, about 6 times harder than carbon steel, used for metal cutting tools as it remains hard even at dull red temperatures. It normally contains: Tungsten 12 to 18%, Chromium up to 5% and Carbon 0.4 to 0.7%. Some of the … Read more

Pewter

single solenoid motor

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 the remainder consisting of copper, antimony, bismuth. Casting If you just want to cast a rough shape then it is … Read more

Parting Aluminium on the Lathe

Parting off aluminium in the lathe can be nerve racking and especially if you’ve got it wrong in the past and either the work piece has come out of the chuck or the tool has broken. Aluminium has the tendency to snag and stop the lathe dead. Based on this I’ve noted down some simple … Read more