Planishing Stake

Description

Planishing,is a process used to true and smooth out the surface of Beaten Metalwork items formed previously by Hollowing, Seaming or Raising for example. The process involves striking the metal surface with a highly polished Planishing or Collet Hammer whilst it is held firmly against the surface of a highly polished Planishing Stake. This imparts a polish on to the beaten metal surface and also Work Hardens the previously Annealed sheet.

Stakes are available in a wide variety of shapes and sizes. They are usually made of Cast Iron but can be self-made from Mild Steel for example. Typically, Planishing Stakes are broadly mushroom shaped with varying degrees of curvature and one is chosen which most closely matches the curvature of the item to be Planished but is a slightly tighter curve.

DT Online Buyers' Guide

12oz Hammers (0.45kg) are a good useful size for general work in Design and Technology.
Larger 2lb hammers (1kg) are used for heavier work such as Blacksmithing for example.
Smaller hammers (e.g. 4oz and 8oz) are suitable for jewellery work and model engineering applications.
Brick Hammers between 1lb and 1.5lb weight (450g to 700g) are suitable for school use and are available also with a Scutch Comb Chisel at one end which can be used for shaping brick and masonry.
A 2lb Lump Hammer (0.9kg) is a good useful size for general work in Design and Technology and home maintenance tasks.
2lb to 4lb Sledge Hammers (1-2kg) are a suitable size for general forge-work in Design and Technology since hammers heavier than 4lb would be difficult for students to use.