3results about How to "Smooth processing surface" patented technology

The application provides a tunable pulse train laser and a design method thereof, the laser comprising a pumping light fiber coupling focusing system, a cavity mirror, a laser crystal, a passive Q-switching crystal, an active Q-switching system and a laser output mirror arranged in sequence according to an optical path; the tunable pulse train laser is configured to: in a working state, through the equivalent length control of the passive Q-switching crystal and the modulation control of the active Q-switching system, the number of pulse trains is controlled under the same main frequency, or the same pulse train is output under different main frequencies. The application uses the active Q-switching system and the passive Q-switching crystal in cooperation, uses the active Q-switching and the passive Q-switching in combination to obtain the output of the main frequency plus the pulse train, is favorable for the multiple processing at the same point in the fine machining, and the single pulse energy is constant, thereby providing a pulse train laser scheme which is lower in cost, more ingenious and simple in structure, good in regulation flexibility, and higher in stability and reliability of the laser.

The utility model discloses a TCT straight knife in the field of straight knives, which comprises a knife handle and a cutting head integrally formed with the knife handle, the surface of the cutting head extends outwards to form an inclined cutting part, the surface of the cutting head extends outwards to form a chip removal part, the surface of the chip removal part sinks towards the inside of the chip removal part to form a chip removal groove, and the chip removal groove is formed in the surface of the cutting head. A chip removal groove is formed in the cutting head and extends in the inclination direction of the chip removal part, one end of the cutting head extends outwards to form a straight blade rod, the surface of the straight blade rod extends outwards to form inclined tool edge parts, and chip separation grooves are formed between the tool edge parts; according to the TCT straight cutter, the surface of the straight blade rod extends to form the inclined cutter edge parts and the chip separating grooves between the cutter edge parts, the cutting capacity and the chip discharging effect of the cutter are enhanced, the cutting process is smoother, the chip discharging grooves extend in the inclined direction of the chip discharging parts, cuttings generated in the cutting process can be rapidly discharged, and the cutting efficiency is improved. And cutter abrasion and machining surface quality reduction caused by chip accumulation are prevented.

The present invention discloses a longitudinal cutting clamping fixture, an auxiliary clamp and a combined clamp for metallographic specimens of wires and their applications, and belongs to the field of metallographic detection of wires. The longitudinal cutting clamping auxiliary clamp for metallographic specimens of wires of the present invention comprises a pad block 1 and a pad block 2 connected in a high and low step structure, and a cutting slit 1 through which a grinding wheel can pass is reserved between the two pad blocks. When cutting longitudinally, the metallographic specimen is placed flat on the cutting slit 1, and the high and low step structure can form a stable supporting structure for the metallographic specimen, so that the original double clamping surface of the metallographic specimen is added with another supporting surface, thereby improving the stability of the clamping. The present invention improves the clamping of the metallographic specimen of wires from the original double-sided clamping to three-sided or even four-sided clamping through the cooperation of the clamping fixture and the auxiliary clamp, effectively solving the problems of less clamping parts due to small specimen specifications, large specimen vibration during longitudinal cutting, easy specimen sliding and flying out to cause safety accidents, uneven specimen cutting surface or slope rework, etc.