Model of steel tube punching designs Muju

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  • source:GAENOR CNC Machining
Author: Liu Xifen, make sail keyword: The canal that prop up; Punching; The mould designs a summary: Through undertaking an analysis to propping up craft of punching of tubal spare parts, introduced all sorts of characteristics that machine craft. According to characteristic of this spare parts, put forward to use have treatment of sunken model punching, introduced mould structure and working course. 1 spare parts analyses the important part that the canal that prop up is some product, if pursue,1 is shown. Material is 45 steel, norms is 40 × 3mm without seam a canal, there is on canister wall 5.

60+0.

The aperture of 0075mm, precision demand is higher and the wall is large thicker, spare parts surface not the blemish such as the indentation with very small be patient of and cave in exists. Spare parts production lot is bigger, to produce per year 20 thousand. 2 figuration craft is analysed (1) bore treatment. Use bore treatment, although can assure the dimension precision of aperture, but manufacturing efficiency is low. Because production lot of this spare parts is bigger, cannot satisfy large quantities of requirements that estimate production. (2) machine without sunken model punching. Use machine without sunken model punching, although manufacturing efficiency is taller, the dimension precision of the spare parts also can assure, but the blemish such as the indentation that existing on tube wall and cave in, and spare parts wall is large thicker, punch diameter is lesser, punch is broken off very easily. (3) have treatment of sunken model punching. Use have treatment of sunken model punching, not only manufacturing efficiency is taller, and the dimension precision of the spare parts also can assure. Spare parts wall is large thicker, punch diameter is lesser, punch is broken off very easily, when the mould is designed, must consider to use punch protector. Pass above analysis, as a result of φ 5.

600+0.

The pitch of 075 is closer from spare parts end panel, have 20mm only, reason is used have treatment of sunken model punching. Punch and protect jacket to choose Cr12MoV to make, hardness of punch heat treatment 60 ～ 64HRC; Protection covers heat treatment hardness 55 ～ 58HRC. 6 last words use afore-mentioned patterns, produce the manufacturing pipe that prop up, satisfy the requirement that the product pursues completely, manufacturing efficiency is tall, punching punch service life is taller, the manufacturing cost of the spare parts is low, gained better economic benefits and social benefit. CNC Milling CNC Machining