We provide detailed guides about VDI 3400 mold texture, VDI 3400 Chart, VDI 3400 texture card, VDI 3400 draft angles, VDI 3400 to SPI, Mold Tech and Yick Sang Texture.

VDI 3400 Surface Finish – is a scale often used by German machine manufacturers and quite widely used in Spark and Wire Erosion (Verein Deutscher Ingenieure, the Society of German Engineers) Measurement of surface finishes is done with instruments called profilometers.

VDI Surface Finish refers to the surface finish standard set by Verein Deutscher Ingenieure (VDI), the Society of German Engineers. The VDI 3400 surface finish is mainly processed by Electrical Discharge Machining (EDM) when mold machining. It could also be done by the traditional texturing method.

VDI Ra Aa VDI Ra Ra 3400 µm µinch 3400 µm µinch 0 0.1 4 23 1.4 56 1 0.112 4.48 24 1.6 64 2 0.126 5.04 25 1.8 72 3 0.14 5.6 26 2 80 4 0.16 6.4 27 2.2 88 5 0.18 7.2 28 2.5 100 6 0.2 8 29 2.8 112 7 0.22 8.8 30 3.2 128 8 0.25 10 31 3.5 140 9 0.28 11.2 32 4 160 10 0.32 12.8 33 4.5 180 1 1 0.35 14 34 5 200 1 2 0.4 16 35 5.6 224 13 0.45 18 36 6.3 252

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This practical tool offers real examples of various VDI surface finishes, including VDI 21, enabling you to directly feel and compare the textures. Unlike traditional metal plaques, this plastic card offers a tangible experience, allowing you to feel and visualize the …

4 天之前 · I put this together from data I gathered in the field and from other detectorists information, hope it helps anyone else. I used the info to attach a cheat sheet on my shaft.

VDI standard comparison table to you cross reference.

2024年8月12日 · VDI 3400 defines surface texture standards for mold-making. It categorizes roughness classes using Ra values. German engineers played a crucial role in developing the VDI 3400 standard, ensuring consistent texture quality and improving product performance.

VDI 3400 Mold Texture NO. Description Surface Roughness Ra (µm) Rz (µm) ISO 1302/TC 213 Applications ABSMinDraft (ﾟ) PCMinDraft (ﾟ) Nylo nMi Draft (ﾟ) # 0 0.1 N3 # 1 0.112 # 2 0.126 # 3 0.14 # 4 0.16 # 5 0.18 # 6 0.2 # 7 0.22 N4 # 8 0.25 # 9 0.29 # 10 0.32 # 11 0.35 # 12 600 Stone 0.4 1.5 N5