The hydraulic relief valve with deep cavity and small hole was given up by its p
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The hydraulic relief valve with deep cavity and small hole was given up by its p
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Logan, a German hydraulic customer, left a message on AAK Hydraulic Valves website some time ago: Are you able to process the hydraulic relief valve with deep cavity and precision hole? After getting his hydraulic relief valve drawing, it is indeed difficult to process. Logan told us that he had contacted more than 20 hydraulic relief valve manufacturers, and all of them said that they were not able to process the "very deep cavity and very small hole". Five days passed, even the factory was still not determined. The boss was very dissatisfied, and he couldn't sleep at night.
According to his drawing requirements: the deep cavity of the hydraulic relief valve is Φ 16mm, the depth reaches 40mm, and the small hole in the deep cavity is Φ (0.5 ± 0.02) mm, and the top of the small hole is with a convex sealing surface, with an outer circle Φ 1mm, the diameter of the small hole is 0.5mm, the depth is 5mm, and the coaxiality between the deep cavity small hole and the convex sealing surface is required to be Φ 0.01mm, and the verticality between the convex sealing surface and the deep cavity is required to be 0.01mm. I told him that this processing must be completed by clamping at one time without any deflection, otherwise the accuracy is difficult to meet the standard. The headache is that the ratio of diameter to length of the small hole in the deep cavity of this hydraulic relief valve is 1:10, which belongs to deep hole processing, and the small hole is inside the deep cavity. For such a complicated hydraulic relief valve that is extremely difficult to process, if AAK can't handle it, it is not necessary to try any other hydraulic cartridge valve manufacturers in Ningbo.
Logan asked me how confident AAK was that the sample would be successful. When he learned that AAK was only 80% sure, he considered for a long time, and finally decided to have a try, paid the development fee, and confirmed the trial order. AAK technical team discussed and simulated for 2 days, and determined the scheme of optimizing processing technology. After 4 weeks, AAK sent 5 samples of hydraulic relief valves. Two weeks later, Logan's email came with admiration and thanks. He didn't expect that AAK sample was successful at one time. The precision of the deep cavity and small hole of AAK hydraulic relief valve samples reached the standard, and all the parameter requirements were completely consistent with the drawing requirements.
Logan is curious that all other hydraulic relief valve manufactures were not able to try this order, how does AAK overcome the difficulty of the deep cavity and small hole accuracy? According to the requirements of precision parameters of deep cavity small holes in the drawing, AAK has made 3 optimization points in processing technology:
1. Design the clamping setting of drilling tools to increase the rigidity of the drill bit.
2. Improve the drilling tool. In order to ensure the surface roughness requirements of deep cavity holes, after rough machining with twist drill, finish machining with reamer.
According to his drawing requirements: the deep cavity of the hydraulic relief valve is Φ 16mm, the depth reaches 40mm, and the small hole in the deep cavity is Φ (0.5 ± 0.02) mm, and the top of the small hole is with a convex sealing surface, with an outer circle Φ 1mm, the diameter of the small hole is 0.5mm, the depth is 5mm, and the coaxiality between the deep cavity small hole and the convex sealing surface is required to be Φ 0.01mm, and the verticality between the convex sealing surface and the deep cavity is required to be 0.01mm. I told him that this processing must be completed by clamping at one time without any deflection, otherwise the accuracy is difficult to meet the standard. The headache is that the ratio of diameter to length of the small hole in the deep cavity of this hydraulic relief valve is 1:10, which belongs to deep hole processing, and the small hole is inside the deep cavity. For such a complicated hydraulic relief valve that is extremely difficult to process, if AAK can't handle it, it is not necessary to try any other hydraulic cartridge valve manufacturers in Ningbo.
Logan asked me how confident AAK was that the sample would be successful. When he learned that AAK was only 80% sure, he considered for a long time, and finally decided to have a try, paid the development fee, and confirmed the trial order. AAK technical team discussed and simulated for 2 days, and determined the scheme of optimizing processing technology. After 4 weeks, AAK sent 5 samples of hydraulic relief valves. Two weeks later, Logan's email came with admiration and thanks. He didn't expect that AAK sample was successful at one time. The precision of the deep cavity and small hole of AAK hydraulic relief valve samples reached the standard, and all the parameter requirements were completely consistent with the drawing requirements.
Logan is curious that all other hydraulic relief valve manufactures were not able to try this order, how does AAK overcome the difficulty of the deep cavity and small hole accuracy? According to the requirements of precision parameters of deep cavity small holes in the drawing, AAK has made 3 optimization points in processing technology:
1. Design the clamping setting of drilling tools to increase the rigidity of the drill bit.
2. Improve the drilling tool. In order to ensure the surface roughness requirements of deep cavity holes, after rough machining with twist drill, finish machining with reamer.
Deep Cavity Holes
Hydraulic Relief Valve
ID producto: 12886192
| Referencia: AAK292
| Vendido por:
AAK INDUSTRY CO., LTD
Fecha de alta del producto 16/08/2022
-
Modificado por el vendedor 16/08/2022
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