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  1. dshore

    Bending of copper bus bar strips

    https://res.cloudinary.com/engineering-com/image/upload/v1721335251/tips/Eng_Tips_whuo1q.pdfHello, I am looking for some assistance regarding the bending of some thin (7 mm) bus bar copper strips (2 bends) to a specific engineered drawing shape. Attached drawing shows the dimensions in mm...
  2. dshore

    machining silicon brass rod in 144" lenghts

    HI Gr8blu - You and I are some of the few who know the difference between the two alloys. My background is actually in the copper base ingot business, where we produced these casting alloys regularly and cast them into ingot that were sold to foundries across North America. If you might have...
  3. dshore

    machining silicon brass rod in 144" lenghts

    Thanks to all for your suggestions
  4. dshore

    machining silicon brass rod in 144" lenghts

    Hello, I require about 300 feet per month of 1 7/8" C65500 silicon brass rod, but it is only commercially available in 2" diameter. The standard rod comes in 144 inch lengths, and I am having trouble finding a machine shop to turn down the rod. The 144" pieces could be cut in half before...
  5. dshore

    Welding two bronze alloys together

    Thank you for your help
  6. dshore

    Welding two different bronze alloys together

    Thank you everyone for your help.
  7. dshore

    Welding two bronze alloys together

    We are working with a sign company and need to weld sheets of alloy C22000 alloy to a bronze sculpture, C87300 alloy (Everdur). We are using tig but it doesn't seem to melt the metal very well at all. Any suggestions on a better way to weld this metal? Thank you. David
  8. dshore

    Welding two different bronze alloys together

    We are working with a sign company and need to weld sheets of alloy C22000 alloy to a bronze sculpture, C87300 alloy (Everdur). We are using tig but it doesn't seem to melt the metal very well at all. Any suggestions on a better way to weld this metal? Thank you. David
  9. dshore

    Quantitative Oxide Test

    Ed - are PM's allowed in the this forum ?
  10. dshore

    Quantitative Oxide Test

    Hello, I am looking to have surface oxide tests performed on a group of foundry silicon brass castings in order to try to determine the optimal amount of foundry returns that can be added to each melt, which will produce quality castings. Sample 1 - a melt with 100% ingot Sample 2 - a melt...
  11. dshore

    Zinc equivalent for Manganese Bronze Alloy

    ...(Copper base) and using the formula below I am trying to obtain a zinc equivalent between 43 and 45. Here is the formula Zn Equivalent = (Al*6)+(Ni*-1.3)+(Mn*.5)+(Sn*2)+(Fe*.9)+ Zn My question is that I am looking for any documentation about his formula and what zinc equivalents should I...
  12. dshore

    Pourbaix Diagram for an alloy ?

    Does anyone know if a Pourbaix Diagram could be constructed for a copper base alloy that contains five major elements (copper, iron, nickel, aluminum and manganese)? Thanks for any help. ds
  13. dshore

    Source to purchase Copper Oxide

    Thank you for your suggestions
  14. dshore

    Source to purchase Copper Oxide

    Good Morning, I require approximately 10,000 pounds of copper oxide for an industrial application (furnace flux). Wondering if this could be purchased as a by product....would anyone have suggestions as to where this might be sourced? Thanks
  15. dshore

    Powdered Metal (-325 mesh) in Everdur C87300 Alloy

    Hello - Looking for a supplier of this alloy in this size mesh, with no luck. Does anyone know of companies that might produce this powder if I would supply them the alloy? Thank you.
  16. dshore

    C844 Brass with too much Phosphorus

    That Phos level is on the high side and could lead to castings with porosity or micro porosity. It will also lead to a casting defect called a misrun. PM me if you wish to discuss in further detail. Thanks David Shore
  17. dshore

    Questions about bearings and castings for mining industry

    Is anyone familiar with the maintenance and life span of "high lead copper alloy" bearings that are used in the mining industry/crushing machinery. Photo of one large bushing attached, but also interested in the "cone crusher" castings. I am doing some research about the potential life cycle...
  18. dshore

    377 Forging Brass

    From my limited knowledge, it would be raw forging stock in a round or hex shape. Typical use would be for valves for water distribution systems. Thanks
  19. dshore

    377 Forging Brass

    377 forging brass can be purchased from manufacturer's all over the world. Has anyone noticed a quality difference between manufacturer's, or is forging brass the same no matter the producer? Thank you.
  20. dshore

    HOWE TO MACHINE THIS? WITHOUT CAST

    It looks like a brass forging to me.

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