Singh, S, ; Manufacturing Practice, S. Finish the V block pattern with the help of rasp file as per dimensions. Wear proper tools while working in the pouring area. Patiala- 140401 Objective : To make C. Heavy and is used for rough cutting. You may download other lab manuals and if you didn't find your desired lab manual, you may ask us to provide the same by leaving the name of subject in the comments section below. Cut with handsaw and plane with the jack plane as per marking done as per layout.
It is used to re-sharpen the chisels, bits, plane blades and other tools, white sharpening water is sprinkled on the stone. The blade thickness varies from 5 mm to 12 mm. Do not tough a casting immediately after removing from mould. Square the piece to the suitable dimension and mark their faces. A screw is also attached at the center of the legs for adjustment.
It is made up of carbon steel. It is used for marking various angles. Good quality tools always makes the work easy. Hot metals should be kept away from body at a place where there is no danger of body contact by any person. Hold the job firmly with clamping devices while working at the machines. Advantage of Ply od 1.
Middle layer is called care which is thick and not of good quality. Mark out the job as per the patterns layout. Check the dimensions as per drawing. It is made to form a clearance between two cutting edges so that the saw may work without any restriction. Never feed the stock faster than its capacity. Now, mark the length of the Tenon, and square a line all around it end at the point, which is the shoulder.
It is also available in bigger sizes. Tools used : Try square, steel rule, marking gauge, smoothing plane, flat file, dividers, Hand saw, sand paper soft wood Material : 100 mm × 55 mm × 55 mm Drawing : See diagram Procedure : 1. Wear goggles or a faces shield during pouring operation. Handel hot pieces with tong. The moisture content is reduced because the evaporation takes place and ultimately the timber gets seasoned.
Cutting should be start only after the saw attains the full Speed. Keep the floor area free from obstructions. Lifter is also used for removing loose sand from mould. If you see any accident happing you immediately inform the instructor. According to the shapes knot can be classified as shown in fig. Hardwood- Hard wood has closed structure, heavy in weight, dark in colour and is difficult to work on it, annual rings are not distinct and good tensile strength. Do not wear loose clothes.
Layout an additional check cut at both Tenon and mortises members. Patiala- 140401 Objectives: To prepare Mortise and Tenon Joint Tools Used: Steel ruler, Try square, Measuring tape, Smoothing plane, Mortise and marking gauge, Rip and Tenon saw, Pencil, Mallet, Ball Peen hammer, Clamping vice, Mortise, Gauge, and firmer chisel Materials Used: wood Piece of require dimension Drawing: - See Diagrams Procedure: 1. Bellow; it used to blow but the loose or unwanted sand from the surface and cavity of the mould. The front edge is hardened so as to resist wear and tear. It is marked with inch and millimeter scale. Never feed the stock faster than its capacity. Hold the job firmly with clamping devices while working at the machines.
It consist of a wooden frame fitted with a screen of standard wire mesh at the bottom. Prepare the layout of V block pattern as per drawing. Remove extra material and produce recess on one work piece at one end and middle of the other job work as per given sketch with the help of rip saw and Tenon saw, firmer chisel and mallet. Turning tools should be held firmly. It consists of two legs with a spring on the top of the legs. Never feed the stock faster than its capacity.