HINGE BUFFERS

PHOTO OF THE RIGHT AND LEFT SIDE TAKEN OVER THEIR PRINT

NAME: Charniere pour tampons de trou d'homme
MATERIAL: 1,5" x 2,0" x 8,0", 216 Stainless Steel
MACHINE: Matsuura RA-IIIF VMC

This project was challenging primarily due to the print being written up in French and Metric dimensioning being used instead of Imperial.  The dimensions were easy to convert and pencil onto the print.  Just a few trig. problems to solve and I was ready to begin working on creating geometry for applying tool-paths.

The metric geometry was easy to draw using the CAD system.  The tool paths were easy to apply, however I did run into some difficulty in deciding a correct way to hold the piece for machining all sides.

This part was challenging but rewarding in the end.  It was good for me to work with Metric numbers instead of the typical ones seen on most English prints.  The 216 Stainless was a menace to my inserts, it was necessary for me to index them once per piece - not too bad. 

I believe I have some lathe programming to work on tomorrow.

GLAND PLATE

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DIMENSIONS AND TOOL PATH SHOWN
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Name: Gland Plate
Material: 304 Stainless
Machine: Matsuura RA-IIIF


The original gland plate was brought in for duplication along with four plates that were already cut to size, 8,25 x 17,25.  All of the dimensions were taken with a 6,0" - 0,001 SPI caliper and the geometry was drawn using our CAD system.

Six different drill sizes were used, the smallest being 0,1695, and the largest, 0,397.

Impeller

CASTING BEFORE RE-WORK

FACING (SIDE VIEW)

FACING (FRONT VIEW)

CASTING IMPERFECTION

CLICK ON THE LINK BELOW TO SEE FULL-SIZE HQ VIDEO

http://www.youtube.com/watch?v=HPAmZ8ms60Q

• WORK TYPE: FACING
• MACHINE: MILLTRONICS M26
• MATERIAL: CAST IRON
  

These impellers were brought to us for machining; there was a total of four.
All diameters, int. and ext. were machined on manual lathes, the profile work needed to be done on the CNC lathe.

The radius seen above was machined towards the outside diameter where it was blended into a calculated taper.  All of the geometry for the profile was drawn and machined using BobCAD v24.

A G73 lathe cycle was used to machine this part.  It's purpose is to minimize the cutting time for roughing material of irregular shapes and forms, for example, forgings and castings.

Double-Lead Thread - Milltronics CNC Lathe

• 2" - 4 Double Lead Thread
• machine: Milltronics ML26
• material: 4140

We ran this 2" - 4 TPI on our Milltronics ML26 lathe to proof the controllers proprietary G76 canned cycle. Our goal was to achieve a double lead thread for an upcoming job.

The G76 cycle format for this particular controller is similar to Fanuc, however it has machine specific preparatory commands (see block numbers N37-N40) -  The machine is also limited to one block, it does not support a two block format.  The unique ability of this controller is the included "Q" parameter seen below. This "Q" parameter controls the shift angle of the thread start position used for multiple threads, i.e. shift 180 deg, 120 deg etc. 0 deg thru 360 deg. are allowed - example: Q0. for zero deg., Q180. for 180 deg., etc.

Here is a truncated program as the second lead would be machined after running the first with the "Q" parameter set to 0.

(TOOL #7 60 DEG. 1/8  0.003 RADTHREADING )
N30 M01
N31 T0707 M06
N32 M41
N33 G50 S200
N34 G97 S50 M03
N35 M08
N36 G00 X2.1 Z1.
N37 P103=0                  Chamfer Length: Length of chamfer on the end of thread.
N38 P104=90.00           Chamfer Angle:  The angle of the chamfer on the end of the thread.
N39 P130=0                  Minimum Cut:    (Radius value)   
N40 P131=1                  Finish Passes:    The last pass can be repeated a number of times.  
N41 G01 X2. F.5
N42 G76 X1.75 Z-4. I0. K.125 D.015 A60. Q180. P1 F.5
N43 G00 X20. M9
N44 G00 Z5. M5
N45 M30

Tube Hole Layout

Geometry

DRILL (299) - 0.635" DIA. HOLES
IN BAFFLES FOR 0.625" O.D. TUBES

Harley Davidson Fatboy Rim Pocket Geometry Design and Machining

Rim Features Before Geometry Design

Machined Geometry

Motorola Droid X Photo

Image Manipulation Using Gimp

http://www.gimp.org

The following series of images display a pocket machining process. The rims that are to be machined have come from various Harley Davidson motorcycles. They are purchased from a local company here in Corpus Christi and then delivered to us for pocket design and machining.

I.B. Bearing End Cover for 10 AHV & 14 AFV Pumps

O.D. Turning - .0313 Rad. 80 Deg.

Boring - .0313 Rad. 80 Deg.

Backside Facing Contour - 0.313 Rad. 80 Deg.

Matsuura RA-IIIF Used to Finish Slots and Drilling Holes