Mechanique
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Cutting the Weldon set screw surface on the Emco Maximat V10P machine using a Niagara single angle chamfering cutter.
Cutting the Weldon set screw surface on the Emco Maximat V10P machine using a Niagara single angle chamfering cutter.
Viewed: 263 times.
381 BCMC01.  38.1mm brazed carbide miter cutter close up showing 4140 body with carbide ring in position ready for brazing.
381 BCMC01. 38.1mm brazed carbide miter cutter close up showing 4140 body with carbide ring in position ready for brazing.
Viewed: 214 times.
381 BCMC02.  Brazing fixture for the brazed carbide mitre cutters.  Down the line if all works out maybe oven brazing?
381 BCMC02. Brazing fixture for the brazed carbide mitre cutters. Down the line if all works out maybe oven brazing?
Viewed: 207 times.
Branding and marking the size of the brazed carbide mitre cutters using the old fashioned roll stamping technique.
Branding and marking the size of the brazed carbide mitre cutters using the old fashioned roll stamping technique.
Viewed: 211 times.
The brazed carbide mitre cutter bodies have been turned and marked and now the brazing of the carbide ring to the bodies proceeds.
The brazed carbide mitre cutter bodies have been turned and marked and now the brazing of the carbide ring to the bodies proceeds.
Viewed: 206 times.
38.1 brazed carbide mitre cutters on the coolingboard.  Into hot water, sandblast and off to McKenzie Tool Grinding.
38.1 brazed carbide mitre cutters on the coolingboard. Into hot water, sandblast and off to McKenzie Tool Grinding.
Viewed: 243 times.
First batch of brazed carbide mitre cutters just arrived from McKenzie Tool Grinding and will be for sale primarily for mitreing heat treated steel tubing such as Reynolds 853, 725 and the new stainless steel 953 although they work beautifully on non-heat treated steel tubing as well.  The body material is 4140 air hardening steel to which a carbide "ring" has been brazed.  After brazing the cutters go out to McKenzie Tool Grinding where the 4140 shank is precision ground to 3/4" in diameter.  The carbide ring is ground to each respective mitre cutter diameter and the teeth are gummed in.
First batch of brazed carbide mitre cutters just arrived from McKenzie Tool Grinding and will be for sale primarily for mitreing heat treated steel tubing such as Reynolds 853, 725 and the new stainless steel 953 although they work beautifully on non-heat treated steel tubing as well. The body material is 4140 air hardening steel to which a carbide "ring" has been brazed. After brazing the cutters go out to McKenzie Tool Grinding where the 4140 shank is precision ground to 3/4" in diameter. The carbide ring is ground to each respective mitre cutter diameter and the teeth are gummed in.
Viewed: 143 times.
Seat tube drainhole drilling.  Last custom Strawberry frames are now in production.  After they're completed only stock 700c and 650b will come off the brazing fixture.
Seat tube drainhole drilling. Last custom Strawberry frames are now in production. After they're completed only stock 700c and 650b will come off the brazing fixture.
Viewed: 127 times.
Silva 080 front derailleur braze-on boss fixture for BSA and T47 bottom bracket shell and 28.6 and 31.7mm seat tubes are now in stock over at Torch and File www.torchandfile.com.
Silva 080 front derailleur braze-on boss fixture for BSA and T47 bottom bracket shell and 28.6 and 31.7mm seat tubes are now in stock over at Torch and File www.torchandfile.com.
Viewed: 71 times.
Another pic of the Silva 080 front derailleur braze-on boss fixture.
Another pic of the Silva 080 front derailleur braze-on boss fixture.
Viewed: 70 times.
And another pic of the Silva 080 front derailleur braze-on boss fixture.
And another pic of the Silva 080 front derailleur braze-on boss fixture.
Viewed: 77 times.
46, 48 and 50.8mm brazed carbide mitre cutter blanks are now machined and ready for the carbide rings to be brazed.
46, 48 and 50.8mm brazed carbide mitre cutter blanks are now machined and ready for the carbide rings to be brazed.
Viewed: 64 times.
First of the newly designed brazed carbide mitre cutters shown here after silver brazing.  Silver brazing flux turns a lovely sky blue after brazing.  Now a nice soak in the hot tub, a little sand blast and off to Paul Brong Machine for finish grinding.
First of the newly designed brazed carbide mitre cutters shown here after silver brazing. Silver brazing flux turns a lovely sky blue after brazing. Now a nice soak in the hot tub, a little sand blast and off to Paul Brong Machine for finish grinding.
Viewed: 166 times.
New design seems to work.  100% successfully brazed which is not trivial.  The batch above includes 46, 48 and 50.8mm brazed carbide miter cutters.  Now for a hot bath, sand blast and then off to lathe boring and they will be delivered to Paul Brong Machine for gumming in the teeth and grinding the shank and body outside diameters.
New design seems to work. 100% successfully brazed which is not trivial. The batch above includes 46, 48 and 50.8mm brazed carbide miter cutters. Now for a hot bath, sand blast and then off to lathe boring and they will be delivered to Paul Brong Machine for gumming in the teeth and grinding the shank and body outside diameters.
Viewed: 6 times.
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