Jeder will bei den hergestellten Teilen Geld sparen. In diesem Video werden Möglichkeiten aufgezeigt, wie die Kosten beim Spritzguss gesenkt werden können, sei es durch das Aussparen von unnötigen Merkmalen oder das Einbringen von Hinterschnitten.
Text im Video
00:02[Music]
00:09hello and welcome to the master class
00:11today we're taking a quick-fire look at
00:14a few ways you can cut costs around
00:16injection molding some of these are
00:19fairly obvious some of them are a little
00:21trickier but they all work let's kick
00:24off with a fairly simple idea that is
00:26cutting out unnecessary features we're
00:29talking about things like company logos
00:31part numbers and nice textured surfaces
00:34these are all nice things to include but
00:37if your concern is cost then these are
00:39easy little luxuries you can shave off
00:42and if you do need to include a logo or
00:45lettering make sure you go for a mil
00:47friendly font something plain like Arial
00:50is perfect similar to this if that nice
00:53finish is important for the part check
00:55to see if all of it needs to be treated
00:57the same way there's not much point in
01:00polishing up both sides of a part if
01:02only one is actually visible in the
01:04finished product so next up we have
01:07undercuts they force you to add extra
01:10things to the mold bumping up tooling
01:12costs as well as needing longer cycle
01:14times again all extra costs you want to
01:17avoid basically if you can get rid of an
01:20undercut do it of course that isn't
01:23always possible lots of side actions
01:26rely on undercuts to actually work in
01:28this case looks alternatives like
01:31sliding shut offs and pass-through cause
01:33or try changing the passing line and
01:36draft angles to provide an easier mold
01:38build from something to avoid we move on
01:42to something to try and include wherever
01:44possible a core cavity now this is
01:47something you're usually going to run
01:49into if you need electronic housing or a
01:51similar shaped box shaped parts there
01:55are two ways to go about making this
01:57first you could sink the wool and
01:59cavities deep into the mold base
02:02requiring a long thing tools to machine
02:04ribs into the mold or alternatively you
02:07could machine the aluminium material (Hersteller)
02:09down around the core and mold the part
02:12around it that second option is a cork
02:15and it's a much more cost-effective
02:17method to build this kind of part better
02:20yet this makes it easier to provide
02:22smooth service finishes and can
02:24eliminate the need for super steep draft
02:27angles another little design tip that
02:29you can save your cash is to create self
02:32mating parts now before you start making
02:34the joke this means that the parts can
02:36just snap together with themselves the
02:39main use for this comes when you're
02:41building a case or some device that
02:43needs two halves that lock together
02:45rather than having different designs for
02:48each bit redesign the snaps so that they
02:51fit in either direction that way rather
02:54than having one production run for part
02:56a and another for Part B you just have
02:59twice as many of your self mating parts
03:01and you cut your upfront expenses in
03:04half sticking with those economies of
03:07sale let's have a quick run-through on
03:09multi cavity molding and family molds
03:12the idea behind multi County molding is
03:15pretty simple
03:16take a simple part and design your mold
03:18to produce multiple copies at the same
03:21time this can be a little bit expensive
03:23when it comes to tolling but the savings
03:26from getting all those parts done at
03:28once should more than balance it out
03:31family mods allow a similar idea but
03:34rather than producing copies of one
03:36single parts they use just one mole to
03:39produce a whole range of different parts
03:42ideally ones that fit together these
03:45don't really increase the tooling costs
03:47you'd be tooling all those different
03:49molds anyway but it does need all the
03:53pieces to be made at the same time with
03:55the same material and roughly the same
03:57size so that they have similar
03:59processing times another good way to
04:02save money on your moles is through
04:05modifying existing ones rather than
04:07creating them from scratch every time
04:10you change your design this is a little
04:13bit more complicated than it looks at
04:15first glance because while removing
04:17metal from a mold is easy adding it back
04:20is a little tricky with a bit of careful
04:23planning though you can use the same
04:25mold over and over again the best
04:28way to do this is to start off with the
04:30smallest most basic part design molding
04:33as many pieces as needed then we machine
04:36the mold to include additional features
04:39it's not an exact science but given the
04:42right part the savings can really add up
04:44and my final tip for you is to get to
04:47the design for manufacturability or DFM
04:50analysis this is basically a checkup
04:52where the experts take a look over your
04:54design and flag up any potential
04:56problems like impossible geometries or
04:59UNMISS chainable features and offer up
05:02ways that the production process could
05:04be made a little smoother this is a
05:06great way to save money because it's
05:09usually free well that's it for this
05:12week we hope you found it interesting
05:13and we'll see you next time
05:17[Music]
05:22you
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Letzte Änderung: 09.04.2020