SERVICE SPECIALIST
FOR INDUSTRIAL COMPUTERTOMOGRAPHY

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Needs-based pore analysis

In poros­i­ty analy­sis, we adapt to your needs. What does that mean?

For one thing, our sophis­ti­cat­ed and auto­mat­ed CT scan process allows us to check small and large quan­ti­ties of parts for the pres­ence of sig­nif­i­cant flaws in a short time. Oth­er­wise, you can also rely on high-res­o­lu­tion, excel­lent­ly eval­u­at­ed CT scans that con­form to rel­e­vant indus­try and man­u­fac­tur­er stan­dards when it comes to first arti­cel inspec­tion. In any case, you will receive a high lev­el of process reli­a­bil­i­ty and at the same time indi­vid­ual, needs-based evaluations.

Price list
Prüfen einer Bed plate am Inline-CT
A Bed Plate is placed on the adapt­ed com­po­nent pick-up in the fast CT.

Extreme­ly fast & affordable

Par­tic­u­lar­ly in the devel­op­ment phase of a new com­po­nent or when a new devi­a­tion sud­den­ly appears, you want to know quick­ly where you stand. This saves mon­ey and nerves. Com­po­nents made of light met­al or plas­tic with an envelop­ing cylin­der of d= 500 mm and a cumu­la­tive mate­r­i­al occu­pan­cy of approx. 200 mm can be digi­tised with­in a few sec­onds. This opens up options for action almost as quick­ly. Favourable inspec­tion costs are also derived from the high scan­ning speed (see price list below). For a batch that is blocked, e.g. due to pores in machin­ing sur­faces, inspec­tion is there­fore also an eco­nom­i­cal alter­na­tive to scrapping. 

Typ­i­cal field of application

  • Uncov­er­ing focal points of error
  • Inspec­tion of blocked lots due to a sus­pect­ed devi­a­tion in a qual­i­ty char­ac­ter­is­tic (pores, shrink holes).
  • Pro­phy­lac­tic avoid­ance of refine­ment of poten­tial rejects, e.g. in the case of pores in machin­ing surfaces

Exam­ple of a quick & inex­pen­sive audit

Dichtlippe als CAD-Qualitätszone
Seal­ing lip with colour-cod­ed test zones, each allow­ing dif­fer­ent pore sizes

In an auto­mat­ic process, the test zone is unrolled and inspect­ed for imper­mis­si­ble pores. 

Abrollung eines Prüfbereichs mit Pore
Unrolling of a inspec­tion area with pore

Short­ly after the CT is unloaded, it is already clear whether the inspect­ed com­po­nent belongs to the IO or NIO cat­e­go­ry. This means that the appro­pri­ate sort­ing can also be car­ried out in the same work step.

Pro­ce­dure:

Ablauf Serienprüfung bei Microvista
*Note: Scan­ning with­in 24h only by appoint­ment and depend­ing on the num­ber of parts. 

Han­dling dom­i­nates the machine occu­pan­cy time. For larg­er quan­ti­ties, the process­es can be fur­ther accel­er­at­ed through automation.

Indi­vid­ual & Reliable

Inspec­tion accord­ing to the var­i­ous stan­dards of car man­u­fac­tur­ers and asso­ci­a­tions requires a high-res­o­lu­tion scan data set. The exe­cu­tion is process-safe, stan­dard-com­pli­ant and in a prac­ti­cal form of pre­sen­ta­tion. Reli­able state­ments with clear indi­ca­tion of remain­ing uncer­tain­ties are a mat­ter of course.

Typ­i­cal field of application

  • First arti­cle inspec­tion or requal­i­fi­ca­tion of com­po­nents on the basis of rel­e­vant standards
  • Detailed analy­sis of focal points of error
  • shrink­age cav­i­ty and pore analy­ses on iron and steel castings

Com­par­i­son of images from the fast CT and lab­o­ra­to­ry CT:

Poren am schnellen Inline CT
Rep­re­sen­ta­tion of a pore from a scan with fast CT

In a fast CT scan, microporosity/loosened microstruc­ture are com­bined to form a pore.

Poren in hoher Auflösung
Same pore scan­d­ed with high spa­tial resolution

A high res­o­lu­tion enables detailed state­ments to be made about the con­crete shape of the shrink­age cav­i­ties and pore geometry.

Analy­sis accord­ing to P202 or manufacturer’s stan­dard (ZFN 1136, VW 50093)

In addi­tion to the sup­port pro­vid­ed by indus­try-stan­dard tools, Micro­vista also works with in-house resources to pro­duce stan­dard-com­pli­ant test reports. 

Cross sec­tion through com­po­nent whose poros­i­ty is to be eval­u­at­ed accord­ing to VW50093
Stan­dard-com­pli­ant selec­tion of the test area, deter­mi­na­tion of areas and equiv­a­lence circles. 

In the stan­dard process, all orders are processed with­in 14 days at the latest.

If the parts do not have a ser­i­al num­ber, they are reg­is­tered with an inter­nal num­ber dur­ing part receipt. Both the scan data and the analy­ses and reports cre­at­ed in sub­se­quent pro­cess­ing steps then refer to this num­ber. This ensures 100% trace­abil­i­ty of all work steps. Microvista’s qual­i­ty man­age­ment sys­tem is cer­ti­fied accord­ing to ISO 9001/2015 as well as ISO 9100, which is impor­tant in the aero­space industry.

Ulti­mate­ly, the analy­sis of pores and shrink­age cav­i­ties is rarely lim­it­ed to their mere detec­tion. It is always just as impor­tant to quan­ti­fy their size. As with any oth­er mea­sure­ment method, the deter­mi­na­tion of the pore dimen­sion is sub­ject to error. The remain­ing uncer­tain­ty is depen­dent on a vari­ety of fac­tors, such as

  • the atten­u­a­tion of the X‑rays by the mate­r­i­al of the com­po­nent and its dimensions,
  • the spa­tial res­o­lu­tion of the cap­tured and recon­struct­ed image data and
  • the image is not affect­ed by image errors (arti­facts) caused by var­i­ous phys­i­cal effects. 

Reli­able analy­sis results do not come about on their own, even with the best equip­ment. In addi­tion to the exper­tise of the pro­cess­ing staff, estab­lished process­es for uncer­tain­ty assess­ment are required. In every Micro­vista poros­i­ty analy­sis you will find reli­able state­ments on the uncer­tain­ty assess­ment of the results presented.

Price overview for quick and prac­ti­cal inspection

A quick CT analy­sis is pos­si­ble at Micro­vista at an excel­lent price/performance ratio. For quan­ti­ties of more than 1,000 units, we will be hap­py to pre­pare an indi­vid­ual offer.

Scan length
Quan­ti­ty 200 mm 600 mm 1000 mm 1400 mm 1800 mm
1 125 €/ part 150 €/ part 175 €/ part 200 €/ part 225 €/ part
up to 10 63 €/ part 75 €/ part 117 €/ part 143 €/ part 173 €/ part
up to 100 31 €/ part 38 €/ part 78 €/ part 102 €/ part 133 €/ part
up to 1000 16 €/ part 19 €/ part 52 €/ part 73 €/ part 102 €/ part

Analy­sis and evaluation:

  • man­u­al 3D pore report per com­po­nent € 130
  • for larg­er quan­ti­ties (> 200), an auto­mat­ic sys­tem can be cre­at­ed at short notice from our exten­sive mod­ule library, with which the ein­spec­tion costs can be reduced to a frac­tion of the scan­ning costs! 

The above price table is based on the fol­low­ing com­po­nent geometry:

  • max. envelop­ing cir­cle: d= 500 mm
  • max. cumu­la­tive wall thick­ness: 200 mm
  • Mate­r­i­al: plas­tic or light met­al, iron inserts possible
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