[rp-ml] Sinterstation 2000 problems!!

Dear Friends:

We have commissioned a DTM Sinterstation 2000 (old system) recently. We are having serious issues in building good quality parts from DuraForm. The problems we are facing are:

1. Part strength are not what they should be? We are using Laser Power as required.( We have used a maximum Laser Power of 6.2Watts for PA and 6.0 watts for PA-GF). I am comparing the part strength to to that of Vanguard HS parts. Can you shed some light on this.

2. Part warpage. There is no sign of Curling during initial sintering of heat shield but the parts will get warped..In one of the cases the parts warped after 75mm of build, and the warping was so sevcere that the build was aborted)

3. The actual time taken for the build is more than 50 - 60% of the estimated time in case of multiple parts and in most other cases it is more by 20 -30%. But in some cases we have obeserved that it completes exactly as per the estimated time.

4. We are not using Outline scanning. If we use Outline scanning then the machine will run forever :( ....Typically, we have observed that the parts quality as well as strength is better when we use Outline scanning. But a 23 hr build took around 58h to complete!!

5. We have disabled the downdraft in the system. Is that correct or wrong ?

Can anyone help me out on this??

Thanks in advance.

Kindest Regards,

Kiran

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Received on Tue Sep 07 08:24:10 2004