The six standard test method of automotive stamping parts know this 6 PM

The author to share about today: six must master 1 test method of automotive stamping parts. Touch test with a clean cloth to clean the surface of the automotive stamping parts. Inspector need to wear the touch gloves along the longitudinal pressing close to touch on the surface of the stamping, the inspection method depends on the checker's experience. Abrasive grinding if necessary by detection of suspicious areas and verified, but this method is an effective method of quick inspection. 2. Oil test with a clean cloth to clean the surface of the automotive stamping parts. Again with a clean brush oil evenly across the same direction to the stamping parts of the outer surface. Under the strong light of pressing finish coating oil test, suggested that the vertical pressing on the body position. Using this method can be easily found on the stamping of slight pitting, pond, flat ripple. 3. Flexible gauze grinding with a clean cloth to clean the surface of the automotive stamping parts. With flexible sand nets to stamping surface along the longitudinal grinding to the surface of the whole, any pitting, indentation can easily be found. 4. Sharpening stone grinding ( 1) First with a clean cloth to clean the surface of the automotive stamping parts, and then polished with oil stone ( 20 * 20 x 100 mm or larger) , have the place with circular arc and hard-to-reach places with relatively small abrasive polishing ( For example: 8 x 100 mm semicircle sharpening stone) （ 2) The selection of abrasive particle size depends on the surface condition ( Such as roughness, galvanized, etc. ) 。 Suggest using fine-grained whetstone. Oilstone grinding basically along the longitudinal direction, and a good joint on the surface of the stamping parts and some special place can also supplement horizontal grinding. 5. Visual inspection visual detection is mainly used to detect the appearance of the automotive stamping parts: mainly in appearance for stamping, scratches, as well as the leakage process, and the third difference is not big. 6. Fixture detection will stamping parts in the product special fixture, fixture based on manual operation requirements, to test the automotive stamping parts, the main products is consistent with the actual assembly position degrees above articles from metal stamping parts, automotive stamping parts processing custom 18 years ( ） Original, reproduced please indicate the source. 【 Relevant recommendation 】 Details: how much do you know the new energy automotive stamping parts? Details: sharing details of stamping processing industry: precision metal stamping parts figure how to draw, please be aware that this several steps