MetalworkingFun Forum
Todays Project - What did you do today? - Printable Version

+- MetalworkingFun Forum (http://www.metalworkingfun.com)
+-- Forum: Machining (http://www.metalworkingfun.com/forum-5.html)
+--- Forum: Projects (http://www.metalworkingfun.com/forum-7.html)
+--- Thread: Todays Project - What did you do today? (/thread-727.html)

Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549


RE: Todays Project - What did you do today? - dallen - 11-08-2014

(11-08-2014, 12:32 PM)awemawson Wrote: Get it red hot, pop it on to form the recess, tickle the wood with a sand blaster to remove the carbon, while you are there clean the butt piece as well. Job done and you can go out and shoot people :)
nice but your way only works if you own a sand blaster, and don't really care if you happen to ruin the stock and its gophers not people that I have a problem with Yikes


RE: Todays Project - What did you do today? - f350ca - 11-09-2014

Yesterday sprayed oil under the jeep to try and keep rust at bay. Thank god for the car hoist. Today was going to do the truck, decided to check the brakes first, the rotors looked rough through the wheels. All four aluminum wheels were seized to the hubs, had to use a four foot length of 6x6 to beat them off (I hate aluminum wheels) The rear rotors are shot and one of the little shoes it uses for the parking brake had delaminated. The pads were all seized into the mounts and two of the booted sleeves the caliber moves sideways in were seized. The front weren't quite as bad but far from great, all the pads were again seized and one of the slides was seized solid. I know, sounds like poor maintenance but the trucks only 3 years old and 27,000 kms less than 17,000 miles. One of Fords better ideas. Get parts tomorrow and then I can spray it.


RE: Todays Project - What did you do today? - TomG - 11-10-2014

Yeah Greg, Ford seems to have a lot of those "better" ideas. To keep the wheels from sticking, put a piece of plastic wrap between the hub and wheel when you bolt it back on.

Tom


RE: Todays Project - What did you do today? - f350ca - 11-10-2014

I usually coat the surface with anti seize, something the factory always forgets, (along with decent paint on the frame). Doesn't the plastic cut away when installing the wheel?


RE: Todays Project - What did you do today? - PixMan - 11-10-2014

Got inserts in the mail that I'd bought on eBay last week, gave them a try. The cutter is a Walter F4042R.UW19.019.Z03.10, a 3/4" 3-insert 'end mill", and takes ADMT/ADHT/ADGT 10T3xx style inserts. I had gotten it about 6 months ago, never bought inserts because I had an equivalent Kennametal cutter that did have inserts. I sold if off because this one is a far newer and better cutter. Greater axial shear angle, greater radial rake angle for lower cutting forces. This is an important consideration on low HP machines like mine.

The inserts, Walter ADHT10T3PER-G88 grade WK10. Highly polished, dead sharp.
[Image: IMG_2482-r_zpseca43f6e.jpg]

The cutter, showing the angles. Axial shear angle a little harder to discern due to poor lighting conditions in my shop.
[Image: IMG_2480-r_zpsf10964cd.jpg]
[Image: IMG_2479-r_zps8f96ea56.jpg]
[Image: IMG_2481-r_zps052ff99c.jpg]

So I snugged it up in a 3/4" R8 collet, threw a piece of 6061 aluminum in the Kurt vice and took two cuts of .100" (2.5mm) deep. Cranked the spindle up to max 4500 rpm. I calculated that this was 883.5 surface feet per minute cutting speed. Looking to see what kind of finish I would get and knowing the limited HP (2), I then multiplied the RPM (4500) x the feed per tooth (0.003") x the 3 inserts for 40.5 inches per minute feed rate. In my machine control's "manual power feed" mode, the closest is 40.0 ipm, close enough.

The first pass was .25" wide, to check spindle load. No decrease in rpm detected. The second pass was the same .100" deep, but 0.375" wide, so half the cutter diameter. It just started sounding off some strain but didn't seem to slow.





The finish looked pretty darn good! I figure (using my surface finish comparator) that it's between an 8 and 12 Ra (microinch), though it may look a little rougher in the photos.
[Image: IMG_2487-r_zps6eb2c888.jpg]
[Image: IMG_2489-r_zps7d3b8e86.jpg]


RE: Todays Project - What did you do today? - PixMan - 11-11-2014

Darren, it occurred to me that you have a 1-1/2" cutter similar to that one. Your cutter takes the smaller ADMT/ADGT.ADHT 0803xx type inserts, and those are also available in the same ADHT0803PER-G88 WK10 for aluminium. Keep your eyes on eBay for some, these cutters rock for finishes!

P.S. - I looked and found some in the coated grade WXN15, and the seller states in their listing that the item "Ships worldwide." They were about $35 US, plus shipping for a pack of ten and that's cheap.


RE: Todays Project - What did you do today? - dallen - 11-11-2014

still working on my little project

[Image: stock-work-4.jpg]


RE: Todays Project - What did you do today? - Mayhem - 11-12-2014

looks like it is coming along nicely Dave.


RE: Todays Project - What did you do today? - ironman - 11-13-2014

Im learning to use my lathe - so im using Tom`s youtoube vids to exercise... made a few bungs with threads etc yesterday evening. Now im looking for something else to make that involves a little bit more, any suggestions? :)
I was thinking about making a set of stacks for an Hilborn injection, but seems like materialcost will not make it worth it.
If done this way maybe, but i dont think i have the skills... looks cool though:
https://www.youtube.com/watch?v=bXu_16eZKnw


RE: Todays Project - What did you do today? - EdK - 11-13-2014

(11-13-2014, 05:05 AM)ironman Wrote: Im learning to use my lathe - so im using Tom`s youtoube vids to exercise... made a few bungs with threads etc yesterday evening. Now im looking for something else to make that involves a little bit more, any suggestions? :)
I was thinking about making a set of stacks for an Hilborn injection, but seems like materialcost will not make it worth it.
If done this way maybe, but i dont think i have the skills... looks cool though:
https://www.youtube.com/watch?v=bXu_16eZKnw

How about this project from Tom's web site?

http://tomstechniques.com/micrometer-carriage-stop/

Not too difficult a project and you end up with a very useful tool.

Ed