Harvest Engineering Pty Ltd.
Specialised Welders.
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The
manufacture of Tools and Dies has become a more difficult task than
ever before. The dies are more intricate, larger and the production
quantities more demanding of the Toolmaker than ever before. Lead
times for delivery have been compressed to such an extent that
welding has become an integral part of the tool and die
manufacturing process.
Imagine having a facility available that will enable you to
replace missing tool steel, regardless of whether you have removed
too much in machining, the tool has worn or your client has
modified his original requirement. Imagine having a welder at your
disposal that understands toolmaking and all the constraints that
face you every day. Imagine having a welder that understands the
metallurgy of tool steels and can give you exactly what you want.
Imagine having a welder that understands ‘just in time’ and the
urgency of your particular problem.
A
H13 core for a gearbox extension housing required
modifications.
This required a weld deposit of 3mm over 50% of the die casting
area.
Click image to enlarge!
The oldest profession in the world is Toolmaking.
Cavemen revered the clan chief, the medicine man and the toolmaker.
Stone, such as flint was used and excess material was removed until
the required tool was made. If too much was removed, the tool was
set aside for some other use, (a knife became a scraper) or it was
thrown away. When the art of joining things together was developed,
(a technique used only by mankind) toolmakers made tools with
handles such as spears and axes. In the 1950's, tools were made by
nesting inserts into a holder block. With the advent of the E.D.M.
and Copy Mills, we have gone back to the original method of making
tools by removing excess material. It’s just a little more
difficult to throw away a modern tool or die than a lump of flint!
What it means is that your biggest problem is a lack of material.
To put it simply, we can replace it.
The
technology in toolmaking is advancing very quickly. As new
materials and techniques are developed, we are researching new
processes to enable us to service your
requirements.
These photographs shows a core from a die. It molds a fine
filter mesh for a dish washer. Base material is Thyssen 2379
hardened to 60 HRC. The areas broken can be measured against the
metric rule showing 1mm graduations. The $2 coin is 20mm (3/4 inch)
in diameter.
Click image to enlarge!
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